The CDC site has a page where they compiled 70+ years of mask research and found that cloth mask "provide no significant protection from influenza." The funny thing about that is flu strains range from almost the exact same size as covid, to slightly smaller than covid.
The CDC site has a page where they compiled 70+ years of mask research and found that cloth mask "provide no significant protection from influenza." The funny thing about that is flu strains range from almost the exact same size as covid, to slightly smaller than covid.
Do have the link for that you could share?