Curated by Marilyn M. Singleton, M.D., J.D. Transmission of SARS-CoV-2 Note: A COVID-19 (SARS-CoV-2) particle is 0.125 micrometers (μm); influenza virus size is 0.08 – 0.12 μm; a human hair is about 150 μm. *1 nm = 0.001 micron; 1000 nm = 1 micron; Micrometer (μm) is the preferred name for micron (an older term) 1 meter is = 1,000,000,000 nm or 1,000,000 microns Droplets Virus is transmitted through respiratory droplets produced when an infected person coughs, sneezes or talks. Larger respiratory droplets (>5 μm) remain in the air for…
