Anonymous ID: 78d043 Dec. 13, 2021, 10:19 p.m. No.15190013   🗄️.is 🔗kun

https://www.cdc.gov/mmwr/volumes/70/wr/mm7010e3.htm

 

This study says they help but read the all the way to the end when they admit it doesn't help at all. Very tricky in their wording but it is still in their own words that