david agus told us that the south african strain has more mutations to its spike protein. which functions liking a key opening the door to human cells. and there are fears that could make vaccines less effective. >> it will take another two to three weeks to understand the immune responses with the current vaccines and until then, we are very, very scared. >> reporter: is the south african variant already in the u.s., do you think? >> the true answer is we just don't know if it's here in the u.s. my gut is, probably is here in the united states. >> to make limited supplies of vaccines here in the uk go further, they have taken the controversial decision to give more people the first shot and then make them wait 12 weeks instead of three for the second shot, they say, it's a brilliant decision, because it could give more people at least partial immunity. >> holly williams, reporting from london. closer to home, we have part two of jim axelrod's investigation in to why doctors are often not disciplined for causing harm to their patients. state medical boards which are respon

david agus. dr. agus, good morning to you. learning, and there's no standard plan for any particular school district. what does this research mean for the experience generally. will we see a standardization? more people going back and following those recommendations? >> well, finally we have data, right. the data show that in schools that were in full session, 17% of schools now are full session in the country. in those schools, when they did it right with masks and social distancing, there wasn't spread in the school more than the community. even if there are high numbers of cases in the community. that's a big data point. but what was cautioned is when they did indoor sports or gathering indoers or didn't wear masks, there was significant spread. if you do it right we can get kids back to school in the short term which is optimistic. now we have data to standupon. >> dr. agus, michelle here. could the new contagious strain change all of that? >> hi, michelle. yeah. no question about it. i mean, this new contagious strain is

david agus, thank you, we like people who get it, very much.viet of character. >> some of that is insecurity, a lot of that is i just didn't want to be recognized, i didn't sesee the upside o of b becomi ouous as myseself. >> h he's soo tatalented. ahead, anthony'y's inintervie he pursued t the role of abbie hoffman in the trial of the >>> ahead, 48 hours investigates a murder case with a shocking twist. >> i'm maureen maher, "48 hours ." a young mother is found murdered in a river, almost 30 years later, the man long suspected as her killer is arrested. but just before trial, a confession turns the case in a new direction. that's coming up on "cbs this morning." that's coming up on cbs this morning.g. fofor the wholole family. trusted sosoothing vapapors, from vicksks mymy body is t truly powerer. i have t the power to lowerer my a1c. becacause my bodody can still make its o own insulinin. and trulicicity activavates mymy body to r release it,t, lowewering my blblood sugarr from t the first d dose. ononce-weekly y trulicity y res whenen my bod

david agus told us that the south african strain has more mutations to its spike protein.g the door to human cells. and there are fears that could make vaccines less effective. >> it will take another two to three weeks to understand the immune responses with the current vaccines and until then, we are very, very scared. >> reporter: is the south ri

david agus, thank you, as always. michelle? >>> this morning, china is battling its worst outbreak of coronavirus infections it's seen in months as it marks one year since covid-19 forced the city of wuhan into an unprecedented lockdown. the city of 11 million people was effective shut down for a sars-like virus that at the time did not have a name. cbs news was the first international broadcaster in wuhan as people started dying from covid. ramy inocencio and his team are back on the ground with the progress and the setbacks of the past year. >> reporter: one year since his father died from covid, he still refuses to pick up his ashes. this is ads close as he'll allow himself to the funeral home. his personal protest as he sues wuhan for silencing early warnings. "their cover-up is murder," he says. "they should be held accountable. there should be apologies." he says his 76-year-old father might still be alive if he hadn't brauought him in for unrelated surgery. "i feel angry and sad," he says. "more commoners died than offic

david agus joins us now. david, that was a striking number that tom hanson just spoke about. so far right now we know that three states reported cases of the u.k. variant of covid-19. now there are eight. so what should we know about this? >> well, there are two variants, south african and the u.k. there is no question the u.k. varnt is in the united states. eight states reporting. but there probably are many, many more. we're not sequencing enough rna of the virus to know which variant it is. we have to be aware. we have to vaccinate as much as we can as quick as we can. we heard the number from tom there. friday president-elect biden said he would release all of the vaccine instead of holding back that supply. what is your view on this? >> i have been talking daily to the biden team, to the covid team. and certainly every vaccine that is available should be given to somebody. it should not sit in the freezer anywhere. so the sooner we get the initial vaccine out there, the better we will do. with one shot, you get 60% of immunity after 10 to 14 days. hopefully weeks later,

david agus says dr. dre should make a full recovery, but he's not out of the woods yet.n the united states that have an unruptured brain aneurysm. >> i was so distressed when i saw that but i'm glad he's feeling okay. >> and the fact that he's even communicating on instagram says you're doing okay. you hear brain aneurysm and you think, uh-oh, this ain't good. >> nothing but a g thing. >> i listened to so much dr. dre mowing the lawn in the early '90s. that's all i can think about. >> that's an image i want to see. >> got the walkman going, the lawn mower, the long hair. >> nothing but a g thing, i like that. >> that's right. >>> wait until you see who can give pro skateboarders a run for their money some day. this is 1-year-old, she's 1, holly gray. holly gray is her name in action. this adorable little girl from australia has some epic skills for any age. she learned how to master the board with the help of her dad when she was just 10 months old. i feel so inadequate. >> well, look, you feel inadequate? i feel silly. i've been sending grandma a video of teddy on a sco

david agus joins us now. dr. agus, good morning to you.ion. 100 million shots in 100 days. is that realistic? >> thank you, good morning. yeah, it's a bold promise, but i think an important one and a doable one. in order for that to happen, we need the astrazeneca and the johnson & johnson vaccine to receive regulatory approval because they're their are large stocks available now, and we need to step up what we're doing across the country to get vaccines from freezers into people's arms. >> i don't fully understand, doctor, and maybe you can shed light on it why if 31 million or so doses have been distributed, only 12 million or so have been actually put into people's arms. why the gap? >> well, every state was given the right to make their own criteria for who to vaccinate and how to vaccinate. and many of them are having difficulty with it. they're having difficulty with the software, preregistering people so they can go smoothly. they're having difficulty following people for 15 to 30 minutes afterwards, which you have to with the two r

david agus said the south african strain has more mutations to the spike protein which function likere fears vaccines will be less effective. >> it will take another two to three weeks to understand the immune responses with the current vaccines. until then we are very, very scared. >> reporter: is the south african variant already in the u.s. do you think? >> the true answer is we just don't know that it's here in the u.s. my gut is it probably is here in the united states. >> reporter: to make limited supplies go further, they've taken the controversial decision to give more people the first shot but then make them wait 12 weeks instead of 3 for the second shot. dr. agus told us it's a brilliant decision because it could give more people at least partial immunity. ho >>> ahead, part two of the exclusive cbs investigation of why doctors are not being disciplined for medical malpractice. we're told why they're more interested in protecting the doctors and the patients. don't like the sound of that. you're watching "cbs this morning." we'll be right back. to give you the protein you n