Airborne transmission of COVID-19 can occur over distances greater than six feet. Particles from an infected person can move around an entire room or interior space. Particles can also remain in the air after a person has left the room; in some cases, they can stay in the air for hours. The COVID-19 virus can also be spread if someone touches their eyes, nose, or mouth after touching a surface or object with the virus.
Without cleaning or disinfection, the COVID-19 virus can stay on surfaces for hours to days. However, the risk of COVID-19 infection from contact with contaminated surfaces is low. Under experimental conditions, researchers found that the COVID-19 virus remained viable in air for three hours. How long the coronavirus is infectious when it is in the air is a question that scientists have been trying to determine since the beginning of the pandemic.
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