IGCSE Biology 11 Views 1 Answers

Sourav Pan🥇 GoldNovember 15, 2024
State that human immunodeficiency virus (HIV) is a pathogen that causes an STI
State that human immunodeficiency virus (HIV) is a pathogen that causes an STI
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Sourav Pan🥇 GoldMay 15, 2025
Human immunodeficiency virus (HIV) is a pathogen that causes a sexually transmitted infection (STI). It is primarily transmitted through sexual contact, where the virus is present in bodily fluids such as blood, semen, vaginal fluids, and breast milk. HIV attacks the body’s immune system, specifically targeting CD4 cells, which are crucial for immune function. If left untreated, HIV can lead to acquired immunodeficiency syndrome (AIDS), a condition characterized by severe immune system damage and increased susceptibility to opportunistic infections and certain cancers.
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