The herpes simplex virus (HSV) can cause a blister(s) anywhere on the skin. Learn about the different types of herpes.
What are viral infections?
A viral infection is a disease that can be caused by different kinds ofviruses, of which the influenza-virus is best known. A viral infectioncan be in different places in the body, some viruses are mainly in the intestine, while others prefer the lungs and airways.
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