Newer variants of the coronavirus such as alpha and delta are highly contagious, infecting far more people than the original virus. Two new studies offer a possible explanation: The virus is evolving to spread more efficiently through air.
I don't know, how else would the new variants spread so rapidly? I think we've already ruled out the fact that the virus spreads efficiently via surfaces. What the article does indicate is that people should be shifting to N95 masks. Of course, the article doesn't state that explicitly, but what exactly is considered more protective than a surgical mask?
Even loose-fitting cloth and surgical masks block about half of the fine aerosols containing virus, according to the study of people infected with variants, published this month in the journal Clinical Infectious Diseases.
Still, at least in some crowded spaces, people may want to consider switching to more protective masks, said Don Milton, an aerosol expert at the University of Maryland who led the research.
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