10% benchmark is based ‘partly on a misclassification’ of some transmission, report claims
The CDC has cited the estimate to back up its recommendation that vaccinated individuals do away with masks in certain outdoor situations, but should keep wearing masks during others.
According to the Times, the 10% benchmark is based “partly on a misclassification” of some virus transmission in Singapore at various construction sites that may have actually taken place in indoor settings. Singapore also classified settings that were a mix of indoors and outdoors as outdoors, including construction building sites, the outlet reported.
In a Senate committee hearing on Tuesday, Sen. Susan Collins, R-Maine, pressed CDC director Dr. Rochelle Walensky on the report and said it was one of three recent examples of conflicting, confusing guidance issued by the agency, with the other two involving school reopenings and summer camps.
Walensky said the 10% benchmark came from a meta-analysis topline result from a study published in the Journal of Infectious Disease back in November.
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