difficile and tuberculosis. the mutationings that cause bacteria to become resistant doesn't seem to affect how teixobactin works. lewis says this may lead to a whole new approach. >> the dogma under which we operate is bacteria will always rapidly develop rapid resistance, that may be incorrect. >> reporter: professor lewis says human trials could begin in two to three years. if all goes well, could be five to six years before a new antibiotic drug could be commercially available. >> pelley: good news. we'll check the oil oil and stock markets when we come back. when the flu hits, it's a really big deal. the aches. the chills. the fever. an even bigger deal? everything you miss out on... family pizza night. the big game. or date night. why lose out to the flu any longer than you have to? prescription tamiflu can help you get better 1.3 days faster. that's 30% sooner. call your doctor right away. and attack the flu virus at its source with prescription tamiflu. tamiflu is fda approved to treat the flu in people

difficile and tuberculosis. the mutations that cause bacteria to become resistant doesn't seem to affect how teixobactin works. lewis says this may lead to a whole new approach. >> the dogma under which we operate is bacteria will always rapidly develop rapid resistance, that may be incorrect. >> reporter: professor lewis says human trials could begin in two to three years. if all goes well, it could beew five to six years before a newuld antibiotic drug could be commercially available. >> pelley: good news. we'll check the oil and stock markets when we come back. news.s. we'll check the oil oil and stock markets when we come back. when the flu hits, it's a really big deal. the aches. the chills. the fever. an even bigger deal? everything you miss out on... family pizza night. the big game. or date night. why lose out to the flu any longer than you have to? prescription tamiflu can help you get better 1.3 days faster. that's 30% sooner. call your doctor right away. and attack the flu virus at its source with pre