A virus is the smallest particle that consists of a nucleic acid and it attacks your cells just like the Aids virus. They can not replicate themselves it must use a host cell. For instance, if we were to catch a cold our cells would be the host cells. They attach to the host cell and insert their DNA/RNA and then the host cell replicates the virus.
Acquired Immune Deficiency Syndrome, also known as AIDS, is a virus that is very deadly. There has been more than 700,000
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