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Exposure to cough aerosols and development of pulmonary COVID-19 #MMPMID33006317
Vanden Driessche K; Nestele J; Grouwels J; Duval EL
J Breath Res 2020[Oct]; 14 (4): 041003 PMID33006317show ga
We hypothesized that most patients with severe pulmonary COVID-19 were exposed to cough aerosols. Among patients that were almost 100% certain which person infected them, only 14 out of 38 overall, and 9 out of 25 hospitalized patients requiring supplemental oxygen, were infected by someone who coughed, which did not support our hypothesis. Talking, especially with a loud voice, could be an alternative source generating SARS-CoV-2 aerosols. Further research is needed to determine how SARS-CoV-2 spreads. Avoiding to talk when you are not wearing your mask and not talking with a loud voice, 'voice etiquette', could be other public health interventions worthwhile exploring.