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Beginning of Paper
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AIDS
AIDS (acquired immunodeficiency syndrome) is a disease caused by a
virus- HIV (human immunodiciency virus). The first cases in this country came to
light in the early eighties. Although the origins of AIDS remains uncertain it
is thought to have emerged decades ago in sub-Saharan Africa. There is a
closely related virus (simian immunodeficiency virus, or SIV) that is found
among monkeys in that particular area which AIDS is though ....
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Middle of Paper
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.... that does not kill the
patient. Its principle source of infection is the HIV virus which is a
retrovirus. This means that the protein coat contains RNA instead of DNA and
when the virus injects its genetic material into the host cell, it must first
cause the cell to transcribe, using a unique enzyme called reverse transcriptase,
it into complementary- DNA (c-DNA) before replication can occur. The virus is
spherical in shape and is made of two par ....
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