Yes and no: Some viral illnesses like hepatitis have a specific location of action and a long course lasting months or years. Others like colds are transient and invade common entry areas like the upper airway. Many viruses induce a substance called interferon that tends to repel new viruses while you have one in place, but this fades so you can get a new virus.Bacterial infections are common co-infections.
Answered 5/22/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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