Page 322 - Effectiveness News Today

Series of vaccination. >> reporter: promising news from pfizer on the efficacy of its vaccine against the omicron variant based on early data. >> three doses against omicron are almost equiv lent to the two-doses effectiveness we had against the original variant. >> reporter: the company saying just two doses may still provide protection against severe disease, but adding that a booster increases protection by about 25 times. dovetailing with that data, a very small study in south africa showing...

Some fectiveness. with two doses of the vaccine, in many cases its below the level we would feel comfortable saying it will protect against omicron. the first lesson is almost certainly everyone that got two doses will need a third dose and we should think about the covid vaccine now as a three-dose vaccine and we do not have the data yet on the individuals who have gotten three doses but what we do have is individuals that have been infected before and then got vaccinated and seem to do better ...

Indeed neutralized the initial lineage virus, which is expected. but then theres a substantial drop in the antibodies, around 40-fold to the omicron variant. now, 40-fold may seem like an extraordinary amount, but in virology, we deal in log values. so the partial good news is that the antibodies didnt disappear entirely or its not 1,000-fold decrease. so theres likely some effectiveness. the problem is with just two doses of the vaccine, in many cases its below the level that we would feel comf...

Cover omicron as a new distant relative to the strain. it does really cover three doses. >> okay. i just want to be clear, when you talk about the effectiveness of the vaccine, i think we often co mingle breakthrough infections with illness. when you have a drop in the effectiveness of the vaccine that youre talking about here, do you mean people are more likely to develop these infections? they may test positive without having much in the way of systems, or protection against severe illness tha...

South africa, over 500,000 health care workers got immunized with j&j. theyre giving a booster dose of j&j to those workers. well know more about their level of protection against omicron. the data im getting is that health care workers that have one dose of j&j are getting infected, but not getting sick, not endtion up in the hospital, not requiring oxygen when they get hospitalized. theyre having very short hospital stays. it looks like even a single dose of j&j is protecting yourself against ...

Is this is not a true vaccine effectiveness study. this is a laboratory experiment where what you do is take blood from individuals who have been vaccinated and you confirm that it neutralizes the virus that it was intended for in the laboratory and you compare those virus neutralizing antibodies to the omicron variant, and what it shows is not surprising that it confirms that people who have gotten two doses of the pfizer vaccine indeed neutralized the original but there a special drop in the n...

Promising news this morning on how well vaccines may work to fight the omicron variant of covid-19. pfizer ceo says preliminary lab studies show three doses of this vaccine are able to neutralize this new strain. >> three doses against omicron are almost equivalent to the two doses effectiveness of the original variant. we are waiting to see. you may need to go to get the third booster faster, and thats something that the health authorities should consider very carefully and make their recommend...

Well look at also what president vladimir putin does after his high-stakes call with president biden. and well be talking with russian chess legend and pro-democracy activist, garry kasparov. and turning now to that breaking news on the pandemic, the ceo of pfizer says the companys covid booster shot is effective in neutralizing the omicron variant for those who get the third shot. >> three doses against omicron are almost equivalent to the two doses effectiveness we had against the original v...

Watching right now who were vaccinated with moderna or with j&j and then maybe their booster was moderna? what should they take away from this information this morning? >> i think what they take away is that they probably also need to get a booster shot. the pfizer data is coming out this morning. well probably hear about moderna and johnson & johnson in the next several days or weeks. but the reality is even before we started talking about omicron, there was emerging evidence that the existing ...

Dont _ are learning more every day. we dont yet — are learning more every day. we dont yet know omicrons severity, its exact _ dont yet know omicrons severity, its exact rate of transmission, nor indeed _ its exact rate of transmission, nor indeed the — its exact rate of transmission, nor indeed the full effectiveness of our vaccines— indeed the full effectiveness of our vaccines against it. since i last spoke — vaccines against it. since i last spoke to— vaccines against it. since i l...