nova vaks and including in south africa prevent severe disease, almost completely. >> okay. >> however the astrazenica trial had not been broken down in different countries with mild and moderate disease. and the reason it got stopped in south africa is because mild and moderate disease was not stopped as much with astrazenica. now johnson & johnson aim finding was seen actually. 857% blocking severe deerz. 57% in atmosphere disease and deaths. and they didn't stop. 957% of the viruss were the b 1351, the south africa variant. it's unclear why they stopped as opposed to just playing it out. >> um-hum. >> but it does mean some of the vaccines, the south africa variant will not work as well, these vaccines won't work as well as mild to moderate. but it does work well for severe disease. >> of course the most important part, right. you don't want people hospitalized and having the severe disease. and also the vaccine can be tweaked, no, against the variant? >> yes, you just said is right. the reason is came to our attention is severe disease. otherwise it would have been a cold. we wouldn

not so much pfizer and but others down the road, like astrazenica and nova vaks. johnsonance john. >> so far it's just the one in case in alameda and but i imagine the true case is higher than that and growing quickly, too. >> yes, we only do less than 1% geno typing of all isolates. is. so to find these two it the tip of the ice rk. >> if you have questions with regard to masks for the doctor put them on facebook live. but i'm going on. because the new research seems the double masking can help in certain situations. tell us what it says beyond the headline that two masks may be better than one. >> there are several pare pearls about the study, it's done in the laboratory, it's not clinical research. it's not on humans. you have to take it with a grain of salt. but my take-home points are really that a well-fitted mask that does the trick is better than an ill fitting mask. that's the main thing. of course wearing a mask is better than not wearing a mask. sounds simple but not everyone is doing that. and the more people that wear masks the better it is for transm

as did nova vaks with their vaccine. that's where the rubber meets the road will these vaccines can be it has the name g 614 g that's the virus most people have been infected with that's the virus we made vaccines to prevent. the question is do the vaccines prevent severe disease, critical disease. hospital hospitalization icu admission. and to date those studies suggest that it would do that. but you're right, when you test something in the lab you're testing whether or not antibodies neutralize the virus. but there are other parts of the immune system. that's where the rubber meets the road and we haven't crossed that line we don't see people naturally infected with one of the variants that line hasn't been crossed. >> yeah, that's fantastic. there is some hope as well that a booster shot could be developed to give us more immunity to the new variants of course time is not on our side what's your thought on that. >> the booster shot -- it's interesting when you get a booster shot even against this virus that's the most

come out both within the work within the laboratory and clinical trials and johnson & johnson and nova vaks. although you may see the efficacy against the variant discovered in south africa and the one discovered in brazil go down, there is still 100% protection after 49 days johnson & johnson, 100% protection against severe diaz and hospitalization. any vaccination that takes it from being deadly to making it a milder disease keeps people out of hospitals and that's what we're concerned about is people's health as well as overwhelming the health care system in all cases, every candidate that's been so far approved, as those come down the pike seem to beive efficacious. >> the white house announced a home instant covid test today. are we as americans really underestimating how important testing is in fighting this pandemic. >> i'm glad you brought that up. because i keep concentrating on the month of february in terms of what can we change this month to avoid the surge of infections which then lead to hospitalizations and deaths? and so vaccinations are one. it's the others, the public heal