Immunology and Virology Diseases

Viruses & Diseases

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Viruses are capable of affecting all the major tissues and systems in the human body. The diseases they cause range from trivial to life-threatening. The outcome of infection by a virus is not absolute but can vary considerably in nature and severity between individuals. Many viruses are found throughout the world, often with high rates of most people in the community have been infected.

Viruses cause the specific diseases within a single virus family, such as the adenoviruses, there are viruses causing respiratory tract infections ranging from mild to severe, and other viruses that cause infections of the eye, gut, or urinary tract. Equally, viruses from at least three distinct families with very different molecular biology and particle structures can all cause the acute symptoms of hepatitis.