Alliance for Pandemic Preparedness

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Tag: airborne transmission

May 4, 2021

Are the Portable Air Cleaners (PAC) Really Effective to Terminate Airborne SARS-CoV-2?

Air sampling in residential rooms of COVID-19 patients (n=7) in Spain showed that 100% of samples were positive for SARS-CoV-2 RNA (cycle threshold (Ct) cutoff 41), but only 15% (1 of 7) of samples were positive after installation of a portable air cleaner (PAC) with a HEPA filter. Notably, the one positive sample after installation…

January 29, 2021

Estimating Aerosol Transmission Risk of SARS-CoV-2 in New York City Public Schools During Reopening

Using previously collected indoor air quality data from New York City public schools, Pavilonis et al. estimated the probability of in-classroom transmission to be 5% for student-to-student transmission, 14% for student-to-teacher transmission, and 20% for teacher-to-student transmission after the introduction of one infectious person into the classroom. Consistent mask wearing by both students and teachers…