Från en amerikansk studie:

”We found that in counties where Covid-19 was prevalent, infections in households increased by nearly 30 percent in the two weeks following a household birthday, compared to households that did not have a birthday. This “birthday effect” was even larger in households with a child’s birthday.”

Intressant läsning i The New York Times.

» The Covid ‘Birthday Effect’ Crossed Political Boundaries

[Foto av Robert Anderson på Unsplash]