How do viruses do their job of infecting humans? Some of them are experts at evading the immune system so that it won't knock them out. Take hepatitis C, a sneaky and potentially deadly viral ...
Hepatitis A blood tests check for immunoglobulin M (IgM) and immunoglobulin G (IgG) antibodies. An IgG-positive and IgM-negative result may suggest immunity to hepatitis A. A doctor may request a ...
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