ワクチン接種者も感染して他人にうつす危険があるからマスクしてください、と

 

The idea that vaccines halt transmission of the virus was largely behind the CDC's decision in May suggesting vaccinated people could safely go without their masks indoors and in crowds, even if others were unvaccinated


But that assumption had been based on studies of earlier versions of the virus. Delta was known for its "hyper-transmissibility," or as one former White House adviser put it "COVID on steroids."

"Information on the delta variants from several states and other countries, indicate that in rare occasion some vaccinated people infected with a delta variant after vaccination may be contagious and spread the virus to others," she added. "

 ワクチン接種者も感染して他人にうつす危険があるからマスクしてください、とCDC

方針が変わったのは、以前の方針は従来型ウイルスに基づいたものだったが、デルタは強力で、ワクチン接種したひとでも、感染した場合、ワクチンしていないひとと同量のウイルスを保有していた、と。

更新

 

CDCの内部文書が流出。CDCはデルタ株が水疱瘡と同程度に感染力が強く、完全接種者であっても未接種者と同様の感染力を持つことがあり、感染リスクが低い場所でも完全接種者も子供や老人と接する場合はマスク着用が必要と認識していることが明らかに。https://t.co/mvXVTUaDIq

— Angama (@Angama_Market) July 30, 2021

 

The new data suggest that vaccinated people are spreading the virus and contributing to those numbers — although probably to a far lesser degree than the unvaccinated.

Dr. Walensky has called transmission by vaccinated people a rare event, but other scientists have suggested it may be more common than once thought.

Infection with the Delta variant may be more likely to lead to severe illness, the document noted. Studies from Canada and Scotland found that people infected with the variant are more likely to be hospitalized, while research in Singapore indicated that they are more likely to require oxygen.

Still, the C.D.C.’s figures show that the vaccines are highly effective in preventing serious illness, hospitalization and death in vaccinated people, experts said.

１）デルタは従来型より入院率が高い、という調査結果がいくつかでている。もっとも、

２）ワクチンは重症化、入院、コロナ死予防に有効

３）ワクチン接種してもまれに感染し、感染した人は他人にうつす危険がある