But it is a virus that has never been seen in humans, so absolutely no one is immune to it. That added to the fact that it spreads as easily from person to person as influenza, and infects the upper respiratory system, is what makes it so dangerous. Plus there is no vaccine.
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Answer:
But it is a virus that has never been seen in humans, so absolutely no one is immune to it. That added to the fact that it spreads as easily from person to person as influenza, and infects the upper respiratory system, is what makes it so dangerous. Plus there is no vaccine.
Answer:
because is covid 19 is virus