Why is corona virus caused by
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it is caused by spreading each other to another
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This is such a virus that once it is in the air it drops down on a surface due to its weight. It is heavier then air. The law of gravity is applied here. If we touch a surface which is contaminated we me get this virus. If we have antigens and antibodies in ourselves then we may be safe from this. Sometimes there are no symptoms in a person and he might have COVID. We need to be safe in this way.
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