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HIV: Origins, Effects, Transmission Myths

Learn about the origins of HIV/AIDS, its effects on the human body, and common misconceptions about transmission. Discover shocking facts and debunk myths surrounding HIV.

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HIV: Origins, Effects, Transmission Myths

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  1. HIV: Effects on the Human Body, Transmission Myths and Facts

  2. How did the HIV/AIDS Epidemic Start? • Read article: “How it Began: HIV Before the Age of AIDS” • http://www.pbs.org/wgbh/pages/frontline/aids/virus/origins.html

  3. Discuss • What new things did you learn about the origins of HIV? • What was surprising?

  4. Source: World Health Organization: http://www.who.int/gho/hiv/en/

  5. HIV Prevalence • Number of people with HIV worldwide (as of 2012) • 60 million adults • 2.5 million children • Predominantly heterosexual disease, affecting men, women, and children. • U.S. Stats • Estimated that one teenager infected with HIV every hour. • 1/7 of U.S. AIDS cases diagnosed in California.

  6. Discuss • What did you learn about the prevalence of HIV? • What was most surprising?

  7. HIV Effects and Symptoms • HIV enters and destroys white blood cells (T-cells) • Eventually, the body is no longer able to fight off infections. (This is known as AIDS.)

  8. HIV Life Cycle Animations • http://www.hhmi.org/biointeractive/hiv-life-cycle • http://highered.mheducation.com/sites/0072495855/student_view0/chapter24/animation__how_the_hiv_infection_cycle_works.html

  9. HIV Facts • “Window Period”: HIV antibodies may not be detectable for 3 weeks to 6 months after infection. (This is how being HIV positive is tested!) • You can pass on the virus even if you don’t test positive! • Symptoms of HIV may not appear for YEARS! • Can be spread by apparently healthy individuals. • Currently NO cure or vaccine for HIV!

  10. Discuss • How does HIV harm the body? • What does an HIV positive individual look like? Is it possible to tell just by looking?

  11. Modes of Transmission • There are 4 body fluids that can transmit HIV. • Blood • Semen • Vaginal Fluids • Breast Milk • HIV enters body via bloodstream or mucous membranes. • Common entry points: Mouth, genitals, anus, broken skin.

  12. Review and Discuss • What are the 4 body fluids that transmit HIV?

  13. Test Yourself: Truth vs. Myth • You can get AIDS from exposure to urine or saliva. • The AIDS epidemic infects men, women, and children. • Children can be infected by their mothers through breast milk. • HIV can only enter a person’s body through their penis or vagina. • People who look completely healthy may be HIV positive and can pass on the virus. • There is a window period (that may be up to 6 months) when an infected and contagious individual will still NOT test HIV positive even though they really are. • Some individuals may be HIV positive for years without showing symptoms. • Abstinence from risky behaviors (such as sexual activity or intravenous drug use) is the best way to prevent HIV infection. • Shaking hands or hugging a person with HIV will cause the virus to be passed on to you.

  14. Test Yourself: Truth vs. Myth Answers • Myth • Truth • Truth • Myth • Truth • Truth • Truth • Truth • Myth

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