FILE PHOTO: A French doctor, wearing a protective suit and a face mask, holds a test tube after administering a nasal swab to a patient at a testing site for coronavirus disease (COVID-19) in Cambrai, following the outbreak of the coronavirus disease (COVID-19) in France, July 9, 2020. REUTERS/Pascal Rossignol/File Photo
CHICAGO (Reuters) - The coronavirus pandemic has exposed a clash among medical experts over disease transmission that stretches back nearly a century - to the very origins of germ theory.
The Geneva-based World Health Organization acknowledged this week that the novel coronavirus can spread through tiny droplets floating in the air, a nod to more than 200 experts in aerosol science who publicly complained that the U.N. agency had failed to warn the public about this risk.
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