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(University of California - Santa Barbara) COVID-19 can be transmitted when an infected person talks, coughs, sneezes or sings, expelling virus-containing respiratory droplets that can reach the mouth, nose or eyes of previously uninfected people. These aqueous droplets tend to fall rapidly out of the air and evaporate on the floor or the ground, but some smaller droplets can evaporate before reaching the ground, leaving virus nuclei floating through the air.
Source: EurekAlert! - Infectious and Emerging Diseases - Category: Infectious Diseases Source Type: news