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Again, when we're talking about scaling back our measures of prevention of infection, when we're talking that in a setting of when we know we have waning efficacy with the two doses and even if you have a booster, studies are showing by ten weeks out. i got any booster shot in september. by 10 weeks out, 30 % to 50% efficacy with that vaccine. and we may have b-cells and t-cells involved, but the question is do we want to risk that? do we want to risk infection of a virus when we don't know the long-term consequences and particularly, when our children are being involved, we as adults have to ...

Our aim should be to prevent severe disease, hospitalisation and death. Our aim should not be to prevent mild respiratory disease with scratchy throats.

Are thinking you are making the right decision by getting your kids vaccinated, and there still could be school closures. this is from fara, is the booster still effective for omicron? >> the answer is we don't know yet because we only have booster data out four weeks for pfizer and two weeks for moderna. that is antibody levels, four weeks after a booster, and in the case of moderna, four weeks after the booster. if we all talk about this, it's a three-shot series, it's a three-shot series, what does that mean when antibodies will start to wane, right? that's what they are supposed to do. you...

Company look at the data. it is encouraging that a third dose increases the antibody response. it's not clear to me yet that that's something that's really going to be necessary. when you think about the immune response that we have, it's a pretty incredible thing. one piece of it is the antibodies that they're measuring in the blood. the other piece of it is call cellular immunity, and that's done by your b cells and your t cells, and those are designed to be able to protect you from viruses that look like viruses you've seen before. it may be that even with a lower level of antibodies, your ...

Going to be necessary. when you think about the immune response that we have, it's a pretty incredible thing. one piece of it is the antibodies that they're measuring in the blood. the other piece of it is call cellular immunity, and that's done by your b cells and your t cells, and those are designed to be able to protect you from viruses that look like viruses you've seen before. it may be that even with a lower level of antibodies, your body once it sees the omicron variant will kick up, generate antibodies and use the other forms of your immune response to knock this down. and that may be ...