2022年1月15日土曜日

追加接種で入院90%防御

 

まず、EUなんちゃらは、

 Preliminary data indicate COVID-19 vaccines remain effective against severe disease and hospitalisation caused by the Omicron variant Share

News 11/01/2022


 The latest evidence, which includes real-world effectiveness data, also suggests that people who have had a booster dose are better protected than those who have only received their primary course. Data from South Africa indicate that people who have received two doses of a COVID-19 vaccine have up to 70% protection for hospitalisation;1  similar data from the UK shows that while protection declines a few months after vaccination, protection from hospitalisation rises again to 90% after a booster shot.2

2回接種で70% 3回接種で90% 防御すると言っているわけだね。

The European Union’s drug regulator is warning that too many doses of COVID-19 vaccines could eventually weaken the body’s immune system, rendering the extra shots ineffective.


Marco Cavaleri, the head of vaccine strategy for the European Medicines Agency, said earlier this week that booster shots can be administered “once, or maybe twice, but it's not something that we think should be repeated constantly.” Cavaleri said instead that boosters should be administered just like an annual flu vaccination.


Cavaleri is the latest health expert to urge against offering a fourth shot of a two-dose COVID-19 vaccine in an effort to provide extra protection against emerging variants of the coronavirus. Britain’s Health Security Agency said last week there was “no immediate need” for people to get a fourth shot, as the current booster regimens are providing good levels of protection. The World Health Organization has repeatedly said that providing first doses to poorer nations is a higher priority than richer nations offering boosters.


Countries should instead start thinking about spacing out boosters at longer intervals, and synchronising them with the start of the cold season in the way that flu vaccines are currently administered, Cavaleri said.


ただ、追加接種で守られているので今のところ4回目の接種は必要ないし(イギリス)、短期間でボカボカうったら免疫システムを弱体化する恐れさえある(EU)。むしろ、 貧困国にワクチン接種を普及させるのが大事(WHO) 。ワクチンは普通のインフルエンザと同じように、流行前の冬に毎年接種すればいいんじゃないか、と(EU)

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