The global shortage of personal protection equipment underscored the need to carefully deploy masks where they would do the most good, said Ryan.

“One can argue that there’s a benefit of anything,” he said, “but where does the given tool have its most benefit and right now the people most at risk from this virus are frontline health workers who are exposed to the virus every second of every day.”

https://www.weforum.org/agenda/2020/03/who-should-wear-a-face-mask-30-march-who-briefing/

Wer im Januar nicht gepennt hat, der hat sich Masken gekauft. Damals gab es noch Masken
zu normalen Preisen an jeder Baumarkt Ecke bzw bei Amazon.