どーすんのこれ…

屋内でマスク無しだと従来株が15分で濃厚接触のところ、
デルタ株ではウイルス量1000倍のため1秒で濃厚接触になる模様

https://www.statnews.com/2021/07/23/how-concerned-should-we-be-about-breakthrough-coronavirus-infections-one-expert-weighs-in/
At the beginning of the pandemic, the CDC said that a close contact was somebody
that you’re indoors with unmasked for 15 minutes or more.
The equivalent of that with the Delta variant is not 15 minutes, it’s one second.