what wave means in terms of pandemic? like currently we are hearing that second wave is going on in india.
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When an infected person coughs, sneezes, or talks, droplets or tiny particles called aerosols carry the virus into the air from their nose or mouth. Anyone who is within 6 feet of that person can breathe it into their lungs. Airborne transmission. Research shows that the virus can live in the air for up to 3 hours.
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