Fourth Pfizer Dose Is Insufficient to Ward Off Omicron, Israeli Trial Suggests

Bloomberg2022-01-18

Preliminary data found inoculation did increase antibodiesThose with 4th shot only slightly less likely to get variantA health worker administers a fourth dose of the Pfizer-BioNTech Covid-19 vaccine ...

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PJoo
2022-01-18
PJoo
Human vs virus, who's stronger?

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Vaccines which were more effective against previous variants offer less protection with omicron, she said. Still, those infected in the trial had only slight symptoms or none at all.Last week, European Union regulators warned that frequent Covid-19 booster shots could weaken the immune system and may not be feasible.Israel started rolling out the fourth dose of the vaccine to the over-60s and immunocompromised in late December amid a surge in cases. Since then, more than half a million Israelis have received the extra dose, according to the Health Ministry.The decision to give the fourth vaccine to the most vulnerable was the correct one, Regev-Yochay said at a virtual press conference, because it may have given additional benefit against omicron. But the results didn’t support a wider rollout to the whole population, she added.Researchers at Sheba are also conducting a trial using a fourth dose of the Moderna vaccine on 120 volunteers who had previously received three shots of the Pfizer-BioNTech jab. One week into the trial, they found a similar rise in antibodies to those that had been given four Pfizer doses, according to Regev-Yochay.","kind":null,"is_publish_news":true,"is_publish_highlight":true,"is_publish_live":false,"is_publish_wemedia":null,"editions":null,"column":"","sentiment":"0","news_tag":"","news_rank":0,"symbols":[],"gpt_button":1},"commentList":[{"id":697223174,"gmtCreate":1642495420995,"gmtModify":1642495837062,"author":{"id":"3572863479502236","authorId":"3572863479502236","name":"PJoo","avatar":"https://static.tigerbbs.com/c1df329f4341646fc633446858d34c31","vip":1,"crmLevel":4,"crmLevelSwitch":0,"authorIdStr":"3572863479502236","idStr":"3572863479502236"},"htmlText":"Human vs virus, who's stronger?&nbsp;","listText":"Human vs virus, who's stronger?&nbsp;","text":"Human vs virus, who's stronger?","images":[],"top":1,"highlighted":1,"essential":1,"paper":1,"likeSize":0,"commentSize":0,"repostSize":0,"link":"https://laohu8.com/post/697223174","repostId":1137012213,"repostType":4,"isVote":1,"likeStatus":false,"favoriteStatus":false,"reportStatus":false,"tweetType":1,"langContent":"CN"}],"isCommentEnd":false,"newsSizeData":{"likeSize":6,"commentSize":1,"repostSize":0,"favoriteSize":0,"likeStatus":false,"favoriteStatus":false},"APP":{"userAgent":"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)","isDev":false,"isTTM":false,"deviceId":"web-server-community-laohu8-v3","version":"4.29.1","shortVersion":"4.29.1","platform":"web","vendor":"web","appName":"laohu8","isIOS":false,"isAndroid":false,"isTiger":false,"isTHS":false,"isWeiXin":false,"isWeiXinMini":false,"isWeiBo":false,"isQQ":false,"isBaiduSwan":false,"isBaiduBox":false,"isDingTalk":false,"isToutiao":false,"isOnePlus":false,"isHuaWei":false,"isXiaomi":false,"isXiaomiWebView":false,"isOppo":false,"isVivo":false,"isSamsung":false,"isMobile":false},"href":"/m/news/1137012213"}