>>and here's some numbers for you. 82 1% of san franciscans are vaccinated with 61% boost it kron on's dan kerman is on the story for you and he will give us a rundown update. coming up on kron. 4 news at 3. what concerns over some mass forcing an east bay school district to take some action. the oakland unified school district issuing a letter addressing concerns about those k n 95 mask the district saying that the mask or appropriate for school use at issue is whether the mask can be used in medical settings. august of 2020. the fda issued an umbrella emergency use for kn 95 mask to be used because of a shortage of those n 95 mask. but then recently updated the entire authorization saying that they are not authorized in supplies of those. n 95 masks are plentiful. this is led to some confusion, as you can understand and some concern thinking that the mask or not good enough, but the clarification coming out of the district with district officials emphasizing the master safe, give more protection than surgical mask and or cloth mask. san mateo county officials are admitting that they'
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