実質的に武漢株特化型ワクチンはオミクロン株にはほとんど効かないし未接種者は接種するべきでないとの研究結果

 

Effectiveness of COVID-19 vaccines against Omicron or Delta infection

Results We included 3,442 Omicron-positive cases, 9,201 Delta-positive cases, and 471,545 test-negative controls. After 2 doses of COVID-19 vaccine, vaccine effectiveness against Delta infection declined steadily over time but recovered to 93% (95%CI, 92-94%) ≥7 days after receiving an mRNA vaccine for the third dose. In contrast, receipt of 2 doses of COVID-19 vaccines was not protective against Omicron. Vaccine effectiveness against Omicron was 37% (95%CI, 19-50%) ≥7 days after receiving an mRNA vaccine for the third dose.

Conclusions Two doses of COVID-19 vaccines are unlikely to protect against infection by Omicron. A third dose provides some protection in the immediate term, but substantially less than against Delta. Our results may be confounded by behaviours that we were unable to account for in our analyses. Further research is needed to examine protection against severe 

https://www.medrxiv.org/content/10.1101/2021.12.30.21268565v1.full.pdf+html

2022年1月1日土曜日

未接種者の「勝ち組」入りと接種者の「負け組」入りは既に確定してる
https://tokumei10.blogspot.com/2022/01/blog-post_80.html

、、、（爆ｗｗｗｗｗｗｗｗｗｗｗｗｗｗｗ