Rabu, 01 September 2021

Huge, gold-standard study shows unequivocally that surgical masks work to reduce coronavirus spread

Results from a massive study in Bangladesh unequivocally show that surgical masks reduce the spread of SARS-CoV-2, scientists say.

from Livescience.com https://ift.tt/3gUilg5
via IFTTT

0 komentar:

Posting Komentar