This study found that before the availability of COVID-19 vaccines, the incidence of COVID-19 was 37% lower in schools that required mask use among teachers and staff members and was 39% lower in schools that reported implementing one or more strategies to improve classroom ventilation.
It's likely that the overlap between mask use and ventilation muddies the study about masks specifically, information please a very good way to prevent spread. Nevertheless, the study claims that masks are effective and the difference between transmission rate was statistically significant.
We need to keep our sources straight. Spreading articles that misquote their sources is a great way to be ignored.
Here's the study op is referencing. Had to go through 3 articles to find it.
https://www.cdc.gov/mmwr/volumes/70/wr/mm7021e1.htm?
It's likely that the overlap between mask use and ventilation muddies the study about masks specifically, information please a very good way to prevent spread. Nevertheless, the study claims that masks are effective and the difference between transmission rate was statistically significant.
We need to keep our sources straight. Spreading articles that misquote their sources is a great way to be ignored.
CDC Did Not Reverse Guidance to Force Children to Wear Masks Because of Science. It Did It to Appease Teacher’s Unions.