What are Viruses?
A virus is an ultramicroscopic infectious agent that consists of a piece of nucleic acid wrapped in a thin coat of protein. It causes infection by replicating itself only within cells of living hosts then results in the death of the host’s cells. It is transmitted by environment, contact or vector.
HIV
HIV is an extremely dangerous virus. It attacks the immune system itself, whereas most viruses just attack other body cells. When enough Helper-T Cells get infected and the count falls below 200, HIV progresses into Acquired Immunodeficiency Syndrome. The absence of many helper-T Cells can be extremely dangerous to the body. This vulnerability can leave the body prone to infections that can’t be fought off easily.
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Influenza
Influenza is a virus that has killed millions of people. It is contracted when one comes in contact with the virus through contaminated surfaces or others who have served as hosts. Inside the body, the virus rapidly multiplies by influencing and destroying cells which triggers immune response including fever and mucus discharge
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