Immunology and Virology Diseases

Human Virology

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A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.

Ebola Virus disease, AIDS, Avian influenza, & SARS are caused by virus those are the serious diseases in human. The relative ability of viruses to cause disease is described in terms of virulence. Some viruses cause lifelong or chronic infections, where the viruses continue to replicate in the body despite the hosts defence mechanisms. This common in hepatitis B virus and hepatitis C virus infections.