george rutherford says that because kids are much less likely to get sick he is generally comfortable students back to school as long as officials keep following the science. >> i think we are doing it pretty carefully, especially for the elementary kids. i do worry more about the high school, as you get older you are much more social, try to be: take your mask off. those are all potentially problematic of years. >> as for the san francisco school, once approved they will be one of the first schools in the city to bring students back and there will be a lot for them to learn about, like silent lunch.>> kids need to be in school. this is what it is about. the light bulbs need to go back on for their social and emotional health as well as their learning. >> so far worthen 70 private and parochial schools are in the process of requesting reopening in the city. the san francisco public schools have not yet announced any timetable for reopening area then there's this to consider tonight. i knew paper estimates that 42% of teachers and other school employees fall into at least one high risk

george rutherford with the latest. thanks for joining us today. >> my pleasure. >> i am doing fine. good to see you. thank you. i want to start with this. cdc's newest model forecasting 214 to 226,000 total deaths by october 17th. now, that's a big increase from their forecast three weeks ago. any reaction to that? >> it's probably about right. there 200,000 deaths now. that would be an average of about 1,000 deaths a day between now and then, a little bit less. that's just about -- so that's about right. that's not -- i don't see that as particularly startling. >> i guess just the sheer number itself. but of course we can control -- >> the sheer numbers, totally. >> right. >> 214,000 people is the size of salt lake city. >> when you put it that way, it is, i mean, it is sad and alarming and all that. the cdc also says people under 20 are now the largest group getting covid. that's a new headline. what do we know about why that is happening? >> college. i mean, i think it's as simple as that, that it's as a lot of places have gone back to -- there is a lot of schools reopened around

california is trending in the right direction for slowing the spread of the coronavirus doctor george rutherford professor of epidemiology at the university of california san francisco says now is not the time to stop being vigilant. i mean you can yourself on the back a little bit. >>i mean we clearly did a great job in march and april and into may. little away from us in june as you know he is referring to the pandemic surging in the wake of the memorial day weekend. he cautions the return of that behavior could prompt another surge over the next 6 months which has some major holidays. we have a very clear example of how we can mess this up christmas parties halloween. big thanksgiving dinners. you know, i mean obviously a huge social a social things but in general it's not going to be a great idea to get out and mix with people that are not part of your household doctor rather for however says it is a good idea to get the flu vaccine. influenza itself is going to create some pressure on emergency departments on hospital inpatient services and in intensive care. if we could avoid that by havin

george rutherford says while the cdc post could have been just a mistake, the issue of aerosol coronavirus transmission is critical. >> it is clearly something you have to contend with especially as winter approaches and people coming indoors more. >> reporter: he says to scientific studies have pointed to aerosol coronavirus transmission. >> was in a restaurant in china, the other in a nursing home in the netherlands. those are pretty clear-cut and they involve recirculated air through come you know, clunky old air-conditioners. >> is an expert in indoor air quality and former senior scientist at the lawrence livermore national lab. >> when you are indoors you also want to, you want to stop the long-range transmission as well. and that requires things like ventilation, things like filtration and things like ultraviolet disinfection. >> they are among more than 230 scientists who signed a letter in june calling a public health leaders to warn the public about aerosol transmission. they say opening windows and not recirculating indoor air are both very important. the cdc today and their sta

california is trending in the right direction for slowing the spread of the coronavirus doctor george rutherford professor of epidemiology at the university of california san francisco says now is not the time to stop being vigilant. i mean you can catch yourself on the back a little bit. >>i mean we clearly did a great job in march and april and into may. little away from us in june as you know he is referring to the pandemic surging in the wake of the memorial day weekend. he cautions the return of that behavior could prompt another surge over the next 6 months which has some major holidays. we have a very clear example of how we can mess this christmas parties halloween. big thanksgiving dinners. you know, i mean obviously a huge social a social things but in general it's not going to be a great idea to get out and mix with people that are not part of your household doctor rutherford, however says it is a good idea to get the flu vaccine. influenza itself is going to create some pressure on emergency departments on hospital inpatient services and in intensive care. if we could avoid that by h

>>i think we're doing really well as a regent doctor george rutherford is a professor of epidemiology at ucsf. >>he attributes that success to things like social distancing and mask-wearing so i think that those things are been key. the fact that not everybody is doing it sort of speaks to the power of it that you don't need to have you can you know you can have serve fewer than perfect. >>up in a here on sunday still see these major major effects but nationwide there is evidence that the u.s. is entering a 3rd wave of coronavirus infections. this chart from the cdc shows that the number of new daily cases is rising after weeks of trending downward doctor rutherford says this 3rd wave hasn't hit california yet, but he wants people to know. >>that it we don't see evidence of that yet in. either the bay area or in california, but it's something to be cautious about and something you know sort of us when a sobering saying since lying out there for us to deal with. >>all right doctor other furs also worried about what could happen this winter when kids start going back to school as school

california is trending in the right direction for slowing the spread of the coronavirus doctor george rutherford professor of epidemiology at the university of california san francisco says now is not the time to stop being vigilant. i mean you can yourself on the back a little bit. >>i mean we clearly did a great job in march and april and into may. little away from us in june as you know he is referring to the pandemic surging in the wake of the memorial day weekend. he cautions the return of that behavior could prompt another surge over the next 6 months which has some major holidays. we have a very clear example of how we can mess this christmas parties halloween. big thanksgiving dinners. you know, i mean obviously a huge social a social things but in general it's not going to be a great idea to get out and mix with people that are not part of your household doctor rather for however says it is a good idea to get the flu vaccine. influenza itself is going to create some pressure on emergency departments on hospital inpatient services and in intensive care. if we could avoid that by having e

doctor george rutherford with ucsf says the trend is also being seen here in the bay area. the number of cases long on counties have bombed by holding 20% and any necessary fees as well the nets is good come of course, i'm not in the clear just yet obvious transmission still going on. >>but it's coming it seems to me less so and you know the trick now is to avoid the problems that they have been going on in much of the country with college is coming back into session and high schools and middle schools coming back into session, you know that's that's going to be the trick to avoid certain way rather for now crediting a committed effort from people masking up it social distancing. >>as a reason for the lower numbers. it's really as simple as that if you just wear masks. >>and if fear around the crowds, you know give yourself a little space give yourself 6 feet and you're going to do fine, you know it's it they and if you have a mask on even if you do get infected, it's probably going to be less severe. >>something also referred cautions about while there is no vaccine for co

california is trending in the right direction for slowing the spread of the coronavirus poctor george rutherford professor of epidemiology at the university of california san francisco says now is not the time to stop being vigilant. i mean you can catch yourself on the back a little bit. >>i mean we clearly did a great job in march and april and into may. little away from us in june as you know he is referring to the pandemic surging in the wake of the memorial day weekend. he cautions the return of that behavior could prompt another surge over the next 6 months which has some major holidays. we have a very clear example of how we can mess this christmas parties halloween. big thanksgiving dinners. you know, i mean obviously a huge social a social things but in general it's not going to be a great idea to get out and mix with people that are not part of your household doctor other for however says it is a good idea to get the flu vaccine. influenza itself is going to create some pressure on emergency departments on hospital inpatient services and in intensive care. if we could avoid that by hav

doctor george rutherford with ucsf says the trend is also being seen here in the bay area. the number of cases in the 9 counties have dropped by more than 20% in each. he says while the news is good we're still not in the clear just yet obvious transmission still going on. >>but it's coming since becoming less so and you know the trick now is to avoid. >>the problems that that been going on in much of the country was college is coming back into session and high schools and middle schools coming back into session. you know that's that's going to be the trick to wait a certain way refer know crediting a committed effort from people masking up in social distancing. >>as a reason for the lower numbers. it's really as simple as that if you just wear masks. >>and if you're fear or around the crowds, you know give yourself a little space yourself 6 feet and you're going to find you know it's if they and if you have a mask on even if you do get infected, it's probably going to be less severe. >>well that was jonathan mccall reporting for us this morning. doctors are urging everyone