thetimes.co.uk/article/no-kno…
“It is rather the opposite,” Prof Berner told a press conference. “Children act more as a brake on infection. Not every infection that reaches them is passed on.” 6/ news.yahoo.com/german-study-f…
google.com/amp/s/mobile.r…
onlinelibrary.wiley.com/doi/abs/10.100…