By Katherine J. Wu
Scientists float a provocative — and unproven — idea: that masks expose the wearer to just enough of the virus to spark a protective immune response.
Published: September 7, 2020 at 08:00PM
from NYT Health https://ift.tt/327E3GE
via IFTTT
from WordPress https://ift.tt/3icwoMF
via IFTTT
No comments:
Post a Comment