doctor, what is the delta variant? >> so the delta plus what's a variant, really mutations in the spike protein. delta plus has one more along the spike protein and this is the one that's circulating more in india at the moment and there have been a few cases in the united states, specifically in utah. delta is the one that's becoming the predominant strain here, not delta plus. >> not sure in everyone is sure, the spike protein is that what allows the virus to attach stop and enter the human cell? >> yes. there's this sticking out piece called the spike protein that will attach the virus to the human cell. the reason it's so important is our vaccines or at least the ones we have authorized in this country involve your body taking a little althat gets injected that helps you code for the spike protein, either mrna or dna in the case of johnson & johnson. you code it up, meaning you create a protein out of it and raise an immune response. your body is like what, this is weird. this looks foreign to me and i'm going to m

the delta variant is far more infectious, and we do not know if children will transmit the delta virus -- delta variant at higher rates than they did the earlier variants. >> dr. jha, what do you say to the people who say, "you know, children really aren't getting sick from this, at least not seriously. there are so few cases of children who have become critically ill or died with covid. it's just more important for children to be in school"? >> it is undoubtedly true that it's incredibly important to have kids back in school. and there is no question in my mind that we know how to get every single child back to school in-person safely this fall. and what i would say is, to people who minimize the effect of this virus on kids is, first of all, kids always have lower risk for almost everything compared to adults and compared to the elderly. that's really not the question. the question is, how does the risk of covid compare to other risks that kids face? and the truth is that covid is much more dangerous than many, many other risks that chiren face, and we should be careful. i'm not sure

so alpha, beta gamma, epsilon, delta, delta plus even. now how, what do we need to be about all these variance? i don't know whether where it is the right word. i would say we have to be alert because we know that the buyer keeps changing. this is something we have been observing since the beginning of the demick. and we do know that there are certain variants which has become more infectious. sometimes also acquiring immune cape properties. so evading the new response a bit better. and these are all properties that one has to factor in when we tried to count the virus by, for example, particular measurements, such as social distance thing or explanation. and why is it that we're now suddenly hearing about so many variants showing up how they really just coming to light just now we just started to understand the more what, what's the case that i think it's a very interesting question that science itself and assigned to i think don't fully understand yet. what is clear is that many of the marion, the extra take quite some time until the su

delta delta plus even a gamma, a veritable alphabet soup of corona virus variance. let's take a closer look at delta, which originated in india. it spreads faster than the original in europe, it's becoming the predominant strain. delta accounts for 97 percent of all sequence positive test samples in the u. k. and there's blamed for sending infections rising once again. it's also dominant in portugal and russia elsewhere. the variance is spreading quickly in austria, where it represents one of every 2 cases. and it's getting a foothold in the czech republic to in germany. recent data shows, delta is around 37 percent of new infections, but the country's infectious disease center recently estimated it was already higher, perhaps 50 percent. some predicts the delta variance could account for 90 percent of all new cases by the end of august, but may sound bad. but remember, there is no evidence of diseases any more dangerous scientific evidence shows the spread of delta is cause for caution, but not for panic. getting the sort of in fact they can cope with 19 is likely

and their ability to protect against the delta variance. if icould have the first slide . >> is simplified to think about it in three separate buckets. what is the protection against infection, against symptomatic disease or against hospitalization? we have data for all three. next slide. first in a study published online on june 14 from scotland, it was shown that the mrna vaccine about an 80 percent effectiveness against pcr's confirmed infections. and this situation, to doses of az was about 60 percent effective. the next with regard, next slide so symptomatic disease. again in the study, in mid rx id, published on may 21 24th, two weeks after the second dose of pfizer vaccines, again 88 percent effective against the symptomatic disease. from the delta variance. next slide. next, what about hospitalization?again public health data from june 14 . the pfizer vaccine was 96 percent effective against hospitalization from the delta variance after two doses and the az was 92 percent effective against hospitalization after 2 doses. next slide.

even if you get the delta or delta plus variants. in san jose, marianne favro, nbc bay area news. >>> the cdc also says kids should be masked up when they head back into the classroom this fall. the cdc made this new recommendation for all students k through 12. this includes kids who have already been vaccinated, as well as teachers and staff. this comes a week after the american academy of pediatrics recommended that children two or older should wear a mask in school. today the largest public university system in america joined a growing number of universities that will require the vaccine if you want to be on campus. the california state university system says it will require anyone using csu facilities to be fully vaccinated by the end of september. nbc's bay area damien tra -- trujillo says people's agreements are mixed. >> for some in california state, vaccines for everybody is the next step. >> to have everyone vaccinated is less of a chance to get covid, especially with the variant going around. i think it's a smart decision.

, the threat that delta poses. july 4, the president made clear that covid-19, quote, has not been vanquished and delta is a power. variant. this is what the president said on july 4. in light of recent reporting it is worth noting that doctor wo lensky said eight days ago that the delta variant is the most infectious respiratory disease she's seen in the last 20 years. her 20 years of her career. our message has always been clear. throughout. we need more people to get vaccinated, to stop the spread of this variant. so we have to continue to make that effort. vaccinated and unvaccinated people infected with delta have higher viral loads, meaning more virus in their body than with previous variants. the last two did not have that. this is what we're seeing in the delta. high viral loads means you are more likely to spread it. in the rare occasions that vaccinated people get delta in a breakthrough infection, they may be contagious. this is what we heard from c.d.c. this week. so the most important takeaway, and i w

do not know if children will transmit the delta virus -- delta variant at higher rates than they did the earlier variants. >> dr. jha, what do you say to the people who say, "you know, children really aren't getting sick from this, at least not seriously. there are so few cases of children who have become critically ill or died with covid. it's just more important for children to be in school"? >> it is undoubtedly true that it's incredibly important to have kids back in school. and there is no question in my mind that we know how to g every single child back to school in-person safely this fall. and what i would say is, to people who minimize the effect of this virus on kids is, first of all, kids always have lower risk for almost everything compared to adults and compared to the elderly. that's really not the question. the question is, how does the risk of covid compare to other risks that kids face? and the truth is that covid is much more dangerous than many, many other risks that children face, and we should be careful. i'm not sure why we would subject kids to a really infectio

the delta variant is far more infectious, and we do not know if children will transmit the delta virus -- delta variant at higher rates than they did the earlier variants. >> dr. jha, what do you say to the people who say, "you know, children really aren't getting sick from this, at least not seriously. there are so few cases of children who have become critically ill or died with covid. it's just more important for children to be in school"? >> it is undoubtedly true that it's incredibly important to have kids back in school. and there is no question in my mind that we know how to get every single child back to school in-person safely this fall. and what i would say is, to people who minimize the effect of this virus on kids is, first of all, kids always have lower risk for almost everything compared to adults and compared to the elderly. that's really not the question. the question is, how does the risk of covid compare to other risks that kids face? and the truth is that covid is much more danrous than many, many other risks that children face, and we should be careful. i'm not sure

clearly, the delta variant is dominant in the world. if you look at this map of the world, there is about 100 countries that now have the delta variant detected in them since june 2020. next slide. if you look at the average daily prevalence of sars-cov-2 worldwide, you see the extraordinary surge in the dominance of this variant worldwide. as was mentioned in several briefings that we have had, we are seeing an increment in our own country to a point of having more than 50% dominance and in some areas of the country greater than 80%. that is sobering news. take a look at what is going on worldwide with hospitalizations. although israel has the same issue with the dominance of the delta strain, there hospitalizations have dramatically diminished. if you look at the far-right of the slide, as of a couple of days ago, they are very low. in the next slide, we see the u.k. dramatic diminution in hospitalizations. if you look at the trend on the far-right part of the slide there is that uptick reflecting what dr. walensky just told you about

i'm daniel winter in berlin, delta delta plus even a gamma, a veritable alphabet soup of corona virus variance. let's take a closer look at delta, which originated in india. it spreads faster than the original in europe, it's becoming the predominant strain. delta accounts for 97 percent of all sequence to positive test samples in the u. k. and this blamed for sending infections rising once again. it's also dominant in portugal and russia elsewhere. the variance is spreading quickly in austria, where it represents one of every 2 cases. and it's getting a foothold in the czech republic, 2 in germany. recent data shows, delta is around 37 percent of new infections, but the countries infectious disease center, which is the estimated it was already higher, perhaps 50 percent. some predicts the delta variant could account for 90 percent of all new cases by the end of august. but may sound bad, but remember there is no evidence of diseases any more dangerous scientific evidence shows the spread of delta is cause for caution, but not for panic. getting the 1st show fact feed against target 1

what is it about the delta variant? the delta variant is very transmissible, it is really hurt and, unfortunately, our unvaccinated, eligible adults who are going into the hospital because 99.96 hospitalizations are in unvaccinated, eligible adults. however, what is it doing for us who are vaccinated? there is so much more virus around, so much higher viral load, that we're seeing more symptomatic breakthrough infections with variant then we saw with the alpha variant, and what that means is we don't want you to get a cold from sars cov2, and because there is so much more circulating virus now, the change, this is a change in my thinking, the cdcs thinking, that we want to put masking back in the face of delta only in areas with high transmission. once they come down, those masks can come off. >> i'm glad you mentioned that because i want to show a cdc map they put out. it is color-coded, and this is what you can look at the cdc site to determine if you are in one of those high transmissible areas that dr. gandhi was ta

so it's an example of dramatic things that are happening in denial, delta or in the mississippi delta. and we have these like fashion of living at the coast. so that's quite critical because we're having this accelerated sea level rise and this is a huge impact on the economy. and this is safety and the delta for like the natural lapse where you can see this ethics in advance before they are happening. you know, that are part of the coast. tourists come to the delta for its wide beaches. little knowing that the sea line has advanced by an average of 6 meters a year for the past 60 years. and they come for its abundance of bird life, most famous of the flamingos. but those who live here complained the successive spanish governments have ignored the problem. among them are muscle produces who had to adapt to changing conditions as their harvests have gradually reduced the muscle produces say that what they do is environmentally friendly. these muscles are important contributors to the marine ecosystem and the beds around here are effective tools for carbon capture the muscles drawing ou

so alpha, beta gamma epsilon, delta, delta plus. even now, how worry do we need to be about all these variance? i don't know whether we're just the right word. i would say we have to be alert because we know that the virus keeps changing is something we have been observing since the beginning of the demick. and we do know that there are certain variants which has become more pictures, sometimes also acquiring immune cape properties, so evading the new response a bit better. and these are all properties that one has to factor in when we tried to come to the virus by, for example, particular measurement, such as social distance thing or an explanation. and why is it that we're now suddenly hearing about so many variants showing up? are they really just coming to light just now? we just started to understand the more what, what's the case that i think it's a very interesting question that science itself and assigned to i think don't fully understand yet. what is clear is that many of the very and the extra take quite some time until th

-- even more dangerous covid-19 delta variant. so any type of political actions , which limit the ability of public health to do its job are counterproductive. frances: coercion and incentives all can have a backlash and the republican governor of south carolina recently said that pressuring people seemed like bad policy. does he have a point? asst. sec. levine: we want to offer whatever incentives we can. the most important thing is to provide accurate information about covid-19, about the delta variant, about its significant risks to our communities, the risks to our children, especially as they enter school, and we hope that providing that accurate information, that is actually the best way to convince people to get our safe and effective vaccines. we have to counter andwe have to counter disinformation. disinformation in social media, for example. and our wonderful surgeon general has had a campaign over the last two weeks emphasizing how important it is for us to counter that misinformation and for us to transmit accurate inf

, the threat that delta poses. on july 4, the president made clear that covid-19, quote, has not been vanquished and delta is a powerful variant. this is what the president said on july 4. in light of recent reporting it is worth noting that -- that this cdc director dr. walensky said the delta variant is the most infectious respiratory disease she's seen in the last 20 years of her career. our message has always been clear throughout. we need more people to get vaccinated, to stop the spread of this variant. so we have to continue to make that effort. vaccinated and unvaccinated people infected with delta have higher viral loads, meaning more virus in their body than with previous variants. the last two did not have that. this is what we're seeing in the so delta. , high viral loads means you are more likely to spread it. so in the rare occasions that , vaccinated people get delta in a breakthrough infection, they may be contagious. this is what we heard from cdc this week. this week. so the most important takeawa

and in some regions of the country, nearly one in two sequences is the delta variant. there are communities that are vulnerable and where we are now seeing surges in cases and indeed also hospitalizations due to what could be the spread of the delta variant and low vaccination rates in these communities. currently, approximately 1,000 counties in the united states have vaccination coverage of less than 30%. these communities primarily in the southeast and midwest will our most vulnerable. in some of these areas we are already seeing increasing rates of disease. as the delta variant continues to spread across the country, we expect to see increased transmission in these communities unless we can vaccine more people now. as you will hear from dr. fauci shortly, our authorized vaccines provide protection against the circulating variants in this country, including delta. vaccination is how we protect these individuals, families and communities and prevent severe disease, hospitalizations and deaths from covid-19. preliminary data from a collection of states over the last s

the delta variant is far more infectious, and we do not know if children will transmit the delta virus -- delta variant at higher rates than they did the earlier variants. >> dr. jha, what do you say to the people who say, "you know, children really aren't getting sick from this, at least not seriously. there are so few cases of children who have become critically ill or died with covid. it's just more important for children to be in school"? >> it is undoubtedly true that it's incredibly important to have kids back in school. and there is no question in my mind that we know how to get every single child back to school in-person safely this fall. and what i would say is, to people who minimize the effect of this virus on kids is, first of all, kids always have lower risk for almost everything compared to adults and compared to the elderly. that's really not the question. the question is, how does the risk of covid compare to other risks that kids face? and the truth is that covid much more dangerous than many, many other risks that children face, and we should be careful. i'm not sure

due delta. that's pretty good. number three is, you know, it's worth to think about a third dose or fourth dose when really to stop a creation of variants. we need to immunize many people as possible, even with one shot. that's where a lot of people are landing on. >> yeah, because we have a lot of people who haven't been vaccinated. and those are a lot of the people we're seeing who are getting the delta variant. we're seeing more hospitalizations of people who just don't have any immunity right now, right? >> yeah, so, you know, if you had to direct the next public health measure, it's not giving a third or fourth shot. it's actually getting one shot into somebody, 50% of the country that hasn't had it yet n what do you think about pfizer saying it wants to do a pfizer shot specific to the delta variant, that they're going to start testing that next month. is that something more important than just the generic booster shot? >> i think it's a good proof of concept, and i'm definitely all for de

under the delta variant, a person who has the delta variant could infect 8 or 9 people. this is a major change. >> there is no doubt that we are dealing with something that is extremely contagious. look at the initial variant. we keep talking about, oh, well, this is so much more contagious. that caused a global pandemic. so we are really dealing with something that we have take additional precautions. again, we have to come back to this message, though, that it is the unvaccinated spreading it to other people who are unvaccinated and even to the vaccinated. so, yes, we should all be masking in the meantime so that we can prevent the spread of covid-19. but at the end of the day, it is vaccination that's going to get it. >> those of us fully vaccinated over these last several weeks and even months since we have been fully vaccinated, we have been out there, hanging out at sports stadiums. doing a lot of stuff without wearing a mask. but that looks like potentially a lot of that -- those considerations have to change. >> i think that we need to calibrate based on our own

clearly the delta variant is dominant in the world.. if you look at this map of the world there are 100 countries that now have the delta variant detected in june of 2020. if you look at the average daily prevalence worldwide and the right-hand part of the slide, you see the extraordinary surgeon the dominance of this variant worldwide w and as was mentioned in several briefings that we have had to see an increase in our own country to the point of now having 50 percent dominance and greater than 70 percent. that is sobering news but look worldwide with hospitalizations. although israel has the same issue with the dominance of the delta strain, there hospitalizations have dramaticallyit diminished. look at the far right as of a couple of days ago, they are very a low. next, the uk similar definition and hospitalizations. however, look at the trend on the far right-hand part of the slide there is an uptick reflecting what dr. wolensky told youju of the slight uptick of hospitalizations in her own country. we know the vaccines listed on t

meanwhile the delta variant is spreading rapidly throughout the country. this week it is estimated to be the most prevalent variant in the united states representing over 50% of sequence sample across the country, up from 26% from the week ending in june 19. the percentage is even higher. in parts of the midwest and upper mountain states, the early sequencing suggest the delta variant accounts for approximately 80% of cases. although we expected the delta variant to become the dominant strain, this rapid rise is troubling. we know the delta variant has increased transmissibility and is surging in parts of the country with low vaccination rates. we also know unauthorized vaccine ash -- we also know these results have been observed not just here in the united states, but in other countries as well. widespread vaccination is what will truly turn the corner on this pandemic. if you are not vaccinated, you remain susceptible especially from the transmissible delta variant and are particularly at risk for severe illness and death. i want to share my concerns abo

i'm daniel winter, invalid delta delta plus even a gamma variable, alphabet soup of corona virus variance. let's take a closer look at delta, which originated in india. it spreads faster than the original in europe. it's becoming the predominant strain filter accounts for 97 percent of all sequence to positive test samples in the u. k. and this blamed for sending infections rising once again. it's also dominant in portugal and russia elsewhere. the variance is spreading quickly in austria, where it represents one of every 2 cases. and it's getting a foothold in the czech republic to in germany. recent data shows, delta is around 37 percent of new infections, but the countries infectious disease center recent, the estimate says it was already higher, perhaps 50 percent. some predict the delta variant could account for 90 percent of all new cases by the end of august. but may sound bad, but remember there is no evidence of diseases any more dangerous. the scientific evidence shows the spread of delta is cause for caution, but not for panic. getting the choice of in fact they can cobra 19 is

so we're very concerned to see this delta varian spreading so rapidly. and there is some early evidence suggesting that it may be related to a greater severity of disease compared with the alphabet area. and also there's some data out of the united kingdom, which shows that the rate of hospitalization is greater for those individuals who are infected with adults very and compared with the older alphabet. and this is highly concerned. so more contagious and more dangerous. the world health organization says the original delta variance is on track to becoming the dominant strain across the world. how will that change? how will that change public health policy? well, i think 1st and foremost, you know, we do know that the vaccines are effective against this delta variance concern. and so it's most important that people who have not yet been vaccinated who can be vaccinated, go out and get back to me that we know the vaccine is safe and effective and even effective against this felt very and i think aside from vaccination, we do know that the non pharmaceuti

but now look at delta, delta just goes up and up. we're looking at april here, and all it is done then is go up with absolutely no sign of coming down again. just so, you know, in this is from al jazeera dot com, a map showing where the delta variance has spread to over a 100 countries. and in the last 2 weeks, look at these places, the us, the u. k. russia, singapore, indonesia, or upwards or 90 percent of their cases are or new cases i should say are delta various cases. so we're going to try to get to the bottom of this with dr. gloria tell jani, who is a verola just and professor of infectious disease that diseases at laptop ends at university of rome. she's on skype, from abilene in italy today. great to have you with us doctor. this is going to sound very, very simple, but is the delta variant essentially cov at 19? now i know it's an evolving disease that has all these different variance, but when the bulk, now this delta variance is that now almost the baseline for cobit 19. this is a difficult to answer the question because

so alpha, beta gamma epsilon delta, delta plus even. now, how we do need to be about all these variance? i don't know where that where it is the right where i would say we have to be alert because we know that the buyer keeps changing. is something we have been observing since the beginning of the panoramic. and we do know that there are certain variants which has become more infectious, sometimes also acquiring immune cape properties. so evading the numerous ones a bit better. and these are all properties that one has to factor in when we tried to count the virus by, for example, particular measurements, such as social distance thing or explanation. and why is it that we're now suddenly hearing about so many variance showing up? are they really just coming to light just now we just starting to understand them or what, what's the case that i think it's a very interesting question that science itself and assigned to i think don't fully understand yet. what is clear is that many of the very and the extra take quite some time until the sur

major. >> garrett: with the march of delta, janet shamlian, thank you. tonight president biden says "there is no mission accomplished as u.s. troops leave afghanistan after nearly 20 years of war." but he also said "the mission hasn't failed, yet." the president set august 31 as the date nearly all of u.s. troops will finally be out of afghanistan even as it appears that country is descending into civil war. two reports with cbs's weijia jiang at the white house. >> reporter: good evening to you, major. pridenden said uting gh e go heisat out to do, it hunted down osama bin laden and eliminated the threat of al quaida to the homeland. now, the majority of americans agree with his decision to bring the troops back home. >> good afternoon -- >> reporter: president biden said he moved up the deadline to pull troops out of afghanistan because it's safer and because it is time. >> we did not go to afghanistan to nation build, and it's the right and the responsibility of the afghan people alone to decide their future and how they want to run their country. >>

the delta variant is a lot more contagious. it has a high reproducibility index, which means one person can spread the virus to up to eight other people in seconds. so even though the vaccine is not 100% protective, can it do you the trick to keep you out of the hospital. that is critical. >> martha: all right. we're listening to questions. we'll be back with marc in a second. >> the difference is that in those cases, those rare cases that we have break through infections, we felt it important for people to understand that they have the potential to transmit virus to others. now importantly to convey in this is that of the transmission that is happening in the country right now, the vast majority of transmission is occurring through unvaccinated individuals. on that exception that we might have a vaccine break through, we want -- we thought it was important for people to understand that they could pass the disease on to someone else. that is important in the case, for example, of vaccinated individuals who might be going to vis

the delta variant is spreading across the country. there is a new version called delta plus. we spoke to infectious disease experts studying this variant and are concerned a booster shot might be needed. she joins us live from the newsroom. >> and just to give some perspective as to how fast these variants are mutating. the delta variant is a variant of concern. and now we have cases of delta plus in the u.s.. >> accounting for nearly 36% of covid-19 cases in june across california is the delta variant. many have heard of it but have they heard about the new mutation? >> have you heard about the delta plus? >> reporter: these mutations are being studied by a doctor and his team. >> the delta variant has 18 different mutations. seven of them are in despite protein. the delta plus variant has an additional mutation in spike for some people are saying it is resulting in increased transmissibility. >> reporter: he met with close to 50 scientists to understand how the delta variant is mutating. >> it is mutating compared to other viruses incredibly quickly. i think a big part of t

>> have you heard about the delta plus? >> what is the difference between the delta and delta plus? >> the delta variant has 18 mutations and seven of them are in despite protein. the delta plus variant has an additional mutation and spike with some are saying is resulting in increased transmissibility. butt last week he met with 50 scientists to understand how the variant is morphing into new strains like delta plus pick >> it is mutating compared to other viruses incredibly quickly. i think a big part of that is because there is a significant percentage of people that get infected that are asymptomatic. >> reporter: this infectious disease specialist says the delta plus variant is an example of the need for a global vaccination plan. the . delta variant was detected in india and then it mutated into the delta plus and now it's in the u.s.? >> it looks like it has been detected in utah. >> when we get protection from the vaccines, you form t cells across 85 parts of the protein. losing 11 to 13 places on the spike protein, you have very strong t-cell immunity from the vaccine. >> r

but this delta variant is different and it requires a lot. one thing we are doing is we are -- the president has actually recommended and calling on state and local governments to use funding that they have received, including funding from the american rescue plan, to offer $100 to anyone who gets fully vaccinated. a financial incentive. other states have lotteries, etc. i think that those are very innovative. they are not sufficient but they are innovative approach. we are working across the nation to make sure that there are tens of thousands of vaccination sites throughout the united states. 90% of people have a vaccination site within five miles of where they live. we are looking for people to get vaccinated at pharmacies, to get vaccinated at clinics, at doctor's offices, at hospitals. and we are actually asking schools now to work with their local and state health departments to have school clinics -- vaccination clinics, at least one but many maybe school pop-up vaccination clinics. so we want local and state health officials, as well

delta, one of the mediterranean is most important wetlands systems. now under severe threat for climate change. ah, hello, welcome to the program. tens of thousands of protests in brazil have returned to the streets demanding the impeachment to present eyeball sonora overs handling of the corona virus. pandemic. brazil has the world's 2nd highest death tolls, but balsam aro continues to down play the dangers of the virus. he's also subject to the corruption investigation linked to a contract to buy indian made vaccines. while the keiana kev has moved from reiteration error. well, the protest here in rio de janeiro is almost over, but we're, there's an error was not the only city where there were just for us to are all over brazil. a some are starting later, i can so follow. people have come to those trees for the 3rd time. since may basically dave, they are very angry at the way the government has handled the pandemic. over 500000 people have lost their life is the 2nd largest death toll after united states, with the difference that in brazil. vaccine

many of the new infections are due to the delta variant. the centers for disease control says delta is as contagious as chicken pox and can cause severe illness. unlike earlier variants, a single case of delta has the potential to infect many more people. president joe biden says tougher covid restrictions are likely on the horizon to combat a surge of infections and hospitalizations. it comes as the cdc releases new information about vaccinated americans and the highly transmissible delta variant. here is jeff zeleny with that. >> it is so darn important that everyone get vaccinated. >> president biden sounding the alarm even louder as the white house scrambles to contain a surge of covid cases from the delta variant, as contagious as the chicken pox. dr. rochelle walensky, head of the cdc telling cnn, i think people need to understand that we're not crying wolf here. this is serious. health officials now saying the delta variant can spread far wider than initially thought. with each infected person able to infect five to nine others. >> i

and with delta 8 to 9. you see one person infect eight others who are not vaccinated. those affect eight others as well and that's why they're emphasizing it is so important meanwhile, we are starting to hear more talk about emphasizing masks again. the american academy of pediatrics put out guidance recommending universal masking in schools saying because, quote, a significant portion of the student population is not yet eligible for vaccines, masking is proven to reduce transmission and protect those who are not vaccinated guys, you're seeing that in schools recommending this, people under the age of 12 are not yet eligible, but you see places like southern nevada's health department, where las vegas is, regardless of vaccination status people should mask up. >> the numbers you showed about the r0, the replication, the delta variant infects eight to nine people whereas the original variant affected two to three additional -- there you go, eight to nine people is this what one would expect to see with muta

major. >> garrett: with the march of delta, janet shamlian, thank you. tonight president biden says "there is no mission accomplished" as u.s. troops leave afghanistan after nearly 20 years of war." hasn't failed, yet." the president set august 31 as the date nearly all of u.s. troops will finally be out of afghanistan even as it appears that country is descending into civil war. two reports with cbs's weijia jiang at the white house. >> reporter: good evening to you, major. president biden said uniting afghanistan was not the end goal, and he insisted that the u.s. did what it set out to do, it hunted down osama bin laden and eliminated the threat of al quaida to the homeland. now, the majority of americans agree with his decision to bring the troops back home. >> good afternoon -- >> reporter: president biden said he moved up the deadline to pull troops out of afghanistan because it's safer and because it is time. >> we did not go to afghanistan to nation build, and it's the right and the responsibility of the afghan people alone to decide their future

yes, we don't know so much on these delta plus. we have to remember that in get media use to use this get us to the stem such as the mutant or no bill plus. so i don't know if it is a delta plus or if it's just valiant. so many moves. and for the moment, we have to follow it carefully as we did for the other. and we may have some supplies. it may appear that in fact, the plus know so many different from the other volume. so what most important questions, though, existing vaccines effective against delta plus in fact, again, if you, if you remember, we had to take a lot of time before attaining with precision value and the effectiveness of the vaccines against the previous volumes for the volume to 2 months to do really at the things that and of course you have some lab tests which may mention some escape immune escape and some concerns regarding vaccines. but joe hill life is probably the best experience to lead. and so when we will see some people having been vaccinated, fully vaccinated, which may have some complication of the di

so alpha, beta gamma epsilon delta, delta plus even now, how worried do we need to be about all these variance? i don't know whether we're just the right word. i would say we have to be alert because we know that the buyer keeps changing. this is something we have been observing since the beginning of the demick, and we do know that there are certain variants which has become more pictures, sometimes also acquiring immune cape properties. so invading the numerous ones a bit better. and these are all properties that one has to factor in when we tried to count the virus by, for example, particular measurements, such as social distance thing or explanation. and why is it that we're now suddenly hearing about so many variance showing up? are they really just coming to light just now? we just starting to understand the more what, what's the case that i think it's a very interesting question that science itself and assigned to i think don't fully understand yet. what is clear is that many of these very in the actually take quite some time until the survey just to give you one example. delta

sars and the delta variant. the delta variant was incredible efficiency and now represents more than 83% of the virus circulating in the united states. compared to the virus we had circulating initially in the united states at the start of the pandemic, the delta variant is more aggressive and much more transmissible than previously circulating strains. it is one of the most infectious respiratory viruses we know of and that i've seen in my 20 year career. we recognize some of you are still thinking about whether you will get vaccinated. maybe use your local officials stepping forward publicly to get vaccinated or maybe you are watching on local news that your community hospitals are getting full or scarier still, maybe covid-19 hass tragically hit you or your h community closer to home. if you are still on the fence, if you still have questions about thee, vaccine, we welcome them. my request to you is this, ask your questions, talk to your health care providers, talk to your pharmacist, talk to your friends an

the delta variant is spreading — country. the delta variant is spreading so _ country. the delta variant is spreading so quickly. - country. the delta variant is spreading so quickly. it - country. the delta variant is | spreading so quickly. it feels like it is a race between that virus and the vaccine. how concerned are you of the variant mutating and becoming even more contagious? it is variant mutating and becoming even more contagious?- even more contagious? it is a very contagious _ even more contagious? it is a very contagious virus, - even more contagious? it is a very contagious virus, one - even more contagious? it is a very contagious virus, one of| very contagious virus, one of the most transmissible virus as we have seen. i don't think it's going to get worse. i think the delta variant is going to be as bad as it is. and you're absolutely right that if we do not get people vaccinated, we will have many more susceptible people that we can give infections to the vaccinated people and we are having a worse delta situation in the uk and we have a high rate of v

new data from the cdc shows the delta variant is much more contagious than previously thought. cbs news confirmed washington post reported internal cdc document that says the very may spread as quickly as chickenpox. >> new data we have seen the la corroborated several times is that if you are vaccinated and one of those rare breakthrough infections, you have the capacity to pass it to somebody else. >> the document states the cdc must publicly acknowledge the war has changed. it argues the agency struggle to persuade the public to embrace vaccination and preventative measures like mask wearing. we talk to it public health expert at uc berkeley who says we need to see the data that supports the cdc information on how the delta variant spreads. >> the bad news is it means fully vaccinated people, some of the fully vaccinated people get infected, will say more breakthroughs. the breakthroughs will be mild, not going to the hospital. and they may be able to transmit. that means we have to change our behavior a little bit. >> looking live at sfo the spread of the very is top of min

this is coming from the delta variant. are you surprised by these numbers going up or is this to have been expected given the recent fourth of july holiday? dr. schaffner: i'm concerned about it for sure and somewhat distressed, but not surprised. this delta variant is extraordinarily contagious, so it is spreading widely. initially this virus was affecting people who were older. many of them have now been vaccinated, so this virus is now seeking out and honing in on people who are unvaccinated, middle-aged and younger adults, adolescents and down into children also. it doesn't surprise me and cases are going up, behind them a czar rising and it is likely that deaths will rise also. unless of course we get vaccinated. because the vaccines we currently have, once we use them are effective against this delta variant. >> is there any indication that because of this variant, potential future variance, a booster either with the moderna, pfizer, or johnson & johnson vaccine will be needed? dr. schaffner: that's a frequently aske

delta bris, it's at the heart of the abroad delta wetlands where rice and shellfish have been cultivated for centuries. but it faces huge environmental challenges. first rate comes from sea levels that rising rapidly and could flood towns and villages fall inland in a few decades. the bro rivers flow has dramatically reduced because of dams and reservoirs, flowers, half since $900.00 ninety's. meaning there's less fresh water and crucially less sediment washed into the delta by the river. now this means that when big storms arrive, the delta is more easily washed away by the sea. and his jone haul now reports lising, temperatures make those storms more likely. when spain's east coast was battered by storm gloria in early 2020, the french wetlands of the bro river delta bore the brunt already at risk from hydro, electric dams, up river that have robbed the delta of much of its silt and fresh water supply. climate change has contributed. rising water levels and warming sees massive storms like glory will become more regular ripping through rice fields and vital sand barriers. so it's an ex

we do the same now with delta. we are preparing and we are already one-third into this wave of a specific delta and delta plus variant vaccine it's very likely we will not need it. but we will come we'll develop the vaccine, and we'll put it on ourselves. but it's so important, there are so many things at stake with the public health that we cannot take chance. so, we just do it. and if something we miss and we realize that biology was complicated and we needed one, we don't have to wait three months to get it >> albert, one more question from the covid trends we're seeing generally a lot on wall street are focused on the uk and watching this curve in what's happening with the case count where it seems it's coming off the boil a little bit can you explain why that's happening, what's contributing to this turn around, what it might tell us about the way that delta can be continued to trend in the u.s.? >> i do not know i do not know. what i think is we see in the uk different results against data from our vaccine th

we are going to have a slight rise with the delta variance, but the delta variant really is not responsive at all, protected at all by the vaccines, so 42% of 90,000 proven delta cases in the u.k. have been vaccinated. in israel, the estimate right now from the israel health authorities that the vaccine efficacy rate is only about 60%-70%, so we expect delta cases and in fully vaccinated individuals, it will be a mild rise. is easily treatable in high-risk patients. there is no reason right now, no

again, most of the countries there infections quite low that and then we have delta, delta varian which came from india. a spring board, almost if you like, of april 2021. the and all it has done is go up and up, there is no sign of any plan. so yes, and if we look at this map very briefly from out to 0 dot com, this just gives you an idea of where the delta variant has spread to over 100 countries. but look at this, the us, the u. k. russia, where else singapore, indonesia, even australia, all of those are outputs of 90 percent. the new infections in the past 2 weeks. that's the amount that has been of the delta variance. so let's try to make some sense of all of this with us on skype is oksana physic, curious, a global health adviser electorate university college london's school of pharmacy. so i want to put together on that sort of data, also combined with what we've seen in israel, who said, let's do a 3rd shot or 5 that in your opinion, is that gonna work? is that or how does it work having a suit? because i thought having 2 shots meant you were fully vaccinated. yes. well doesn't

sars-cov-2 and the delta variant. the delta variant is spending with incredible efficiency and represents more than 83% of the virus circulating in the united states. compared to the virus we had circulating initialty li in the united states at the start of the pandemic, the delta variant is more aggressive and much more transmissible than previously circulating strains. it is one of the most infectious respiratory viruses we know of and that i've seen in my 20-year career. we recognize that some of are still thinking about whether to get vaccinated. maybe you're seeing public officials stepping forward to get vaccinated or watching that your community hospitals are getting full or scarier still, maybe covid-19 sickness has tragically hit you or your community closer to home. if you are still on the fence, if you still have questions about the vaccine, we welcome them. my request to you is this. ask your questions. talk to your health care provider. talk to your pharmacist. talk to your friends and neighbors who have

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