How HIV First Started in Humans

The devastating AIDS epidemic has claimed hundreds of thousands of lives—did you know that a sick chimpanzee is part of what started it all? In the first video of our two part series on HIV and AIDS, join Michael Aranda and learn how scientists figured out what HIV is, when the infection morphs into AIDS, and where scientists think the virus originated.
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Sources:
https://www.avert.org/professionals/h...
https://aidsinfo.nih.gov/
https://www.hiv.gov/hiv-basics/overvi...
https://www.ncbi.nlm.nih.gov/pmc/arti...
https://www.hiv.gov/hiv-basics/overvi...
https://hab.hrsa.gov/livinghistory/is...
https://www.cdc.gov/mmwr/preview/mmwr...
http://img.thebody.com/cdc/pdfs/mmwr0...
http://science.sciencemag.org/content...
https://www. hingtonpost.com/news/to-your-health/wp/2015/02/24/tracing-the-long-convoluted-history-of-the-aids-epidemic\
http://www.iflscience.com/health-and-...
http://www.stat.wisc.edu/~larget/Gene...
https://www.ncbi.nlm.nih.gov/pmc/arti...
http://www.who.int/gho/hiv/en/
https://www.cdc.gov/mmwr/preview/mmwr...
http://www.aidsmap.com/Saliva/page/13...
https://www.ncbi.nlm.nih.gov/pubmed/9...
http://www.usp.br/nepaidsabia/images/...
https://www.cdc.gov/mmwr/preview/mmwr...
https://www.nobelprize.org/nobel_priz...
https://www.hiv.lanl.gov/content/sequ...
http://www.the-scientist.com/?article...
http://journals.plos.org/plosone/arti...
https://retrovirology.biomedcentral.c...
https://www.ncbi.nlm.nih.gov/pmc/arti...
http://bedford.io/pdfs/papers/faria-h...
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Images:
https://commons.wikimedia.org/wiki/Fi...
https://commons.wikimedia.org/wiki/Fi...
https://en.wikipedia.org/wiki/T_cell#...
https://commons.wikimedia.org/wiki/Fi...
https://en.wikipedia.org/wiki/Pneumoc...