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What can we learn about evolution from molecular evidence?
AIDS
Acquired Immune Deficiency Syndrome, a life-threatening condition caused by the human immunodeficiency virus (HIV), which severely damages the immune system.
Virus
A microscopic infectious agent that can replicate only inside the living cells of an organism, causing a variety of diseases.
STI
Sexually Transmitted Infections, infections that are transmitted through sexual contact, caused by bacteria, viruses, or parasites.
Chlamydia
A common sexually transmitted infection caused by the bacterium Chlamydia trachomatis, often asymptomatic but treatable with antibiotics.
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