We now have more data supporting the airborne nature of sars-2 than we have for measles. Looking forward to hearing from ID colleagues about why measles cases can now be managed with droplet precautions.
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Specifically
1. distance helps avoid the higher concentration aerosols + the direct ballistic hit of the larger droplets pre evaporation.
2. source control with FRSM helps both- droplets >aerosol but very good
3. FRSM excellent for mucosal protection, not inhaled -
When diverge in terms of mitigation- 1. Close + no source mask + no FFP3 for extended periods of time. Hand wash and clean away ( rightly so) but still aerosol risk 2. >2m in closed space poor ventilation - hands and clean away but still aerosols to breath
End of conversation
New conversation -
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yes, but worth mentioning that the majority of Covid19 infection is from asymptomatic & pre-symptomatic patients.. who by definition are not coughing & sneezing.. so not producing much droplets
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