Virus human immunodeficiency virus acquired

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(virus): “Human Immunodeficiency Virus / Acquired Immunodeficiency Syndrome” o Currently a pandemic (global) o ~17,500 people die of AIDS per year in U.S. o Causes immune deficiency & is eventually fatal o Asymptomatic for months & even many years o Many don’t know they’re infected o No cure but some drug combinations can slow the progression and can keep the disease under control for many years o AIDS “functionally” cured?
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- Genital herpes (virus): o Common symptoms = painful, burning, or itching blisters on the genitals o Outbreaks recur throughout lifetime o Extremely common: ~16% of American adults! o No cure, but antiviral drugs can help reduce the severity of blister outbreaks - Human papillomavirus (HPV) (virus): o Many different types/strains of HPV o Some can cause cervical cancer & other forms of cancer o At least 65-70% (possibly 100%) of cervical cancer is caused by HPV o A vaccine against the cancer-causing strains is available for males & females but doesn’t cure existing infections - Trichomoniasis (protist): o Small single-celled organism that causes itching & burning in genitals & discharge o Men often have no symptoms o Affects ~170 million people worldwide every year o Can be cured but prolonged infections can cause sterility, problems with pregnancy, & increase risk of cervical cancer - Crab lice (insect): o Live & lay eggs in pubic hair o Suck blood from genital area: itching & soreness o ~2% of people are affected worldwide o Can also spread other infectious diseases o Killed with insecticides o Not prevented by condoms o Can also spread through shared towels, clothing, bedding, or closets
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