October 26, 2016 (2016-10-26) (Wednesday)
Armed conflicts and attacks
Disasters and accidents
Health
- A research team led by an evolutionary biologist at the University of Arizona publishes a paper in Nature on the genetic history of HIV proving that Gaëtan Dugas, the Canadian flight attendant who had been identified for years as "Patient Zero" of the AIDS epidemic in the U.S., did not spread the virus to the country. The study indicates that HIV first spread to the U.S. from the Caribbean around 1970. (BBC) (The New York Times)
International relations
Politics and elections