أنشئ حسابك الآن للتعرّف على خيارات الاشتراك والوصول إلى جميع المقالات المميزة والحصرية، واستمتع بتجربة قراءة من دون إعلانات.
Is it time to start wearing two masks and switch to premium masks? Back in December when the news of #b117 #COVID19 made headlines as being too contagious, I switched from cloth masks to double masks esp that >50% of spread comes from people carrying #COVID w no symptoms. pic.twitter.com/gbRlzjCnfp — Petra Khoury (@petra_khoury) January 25, 2021
Is it time to start wearing two masks and switch to premium masks? Back in December when the news of #b117 #COVID19 made headlines as being too contagious, I switched from cloth masks to double masks esp that >50% of spread comes from people carrying #COVID w no symptoms. pic.twitter.com/gbRlzjCnfp