AIDS
AIDS (or Acquired Immunodeficiency Syndrome) was a Human disease which existed on Earth during the late 20th and the 21st century.

In a part of US President George W. Bush's State of the Union Address of 2003 which appeared in the 31st century database, Bush talked about eradicating AIDS on the most afflicted Earth continent, Africa. ()

Appendices

Background information 
David Gerrold reportedly pitched a script for  involving infections of Regulan bloodworm carried by helpless victims. The story, called "Blood and Fire", used bloodworm infection as an allusion for the 1980s AIDS crisis, describing the same kinds of mistreatment and persecution of carriers. A disagreement with Gene Roddenberry led to the script being abandoned and Gerrold's departure from the series.

The  episode  was initially to have an alien disease that was based on AIDS. Although Naren Shankar dropped Ira Steven Behr's idea for the AIDS metaphor, Terry Farrell still saw the AIDS reference, commenting that the episode was "a good one to work on because I was thinking about the AIDS metaphor while we were shooting it. I felt like we had a touch of reality in that episode". (; )

The story of  is a metaphor to the current AIDS pandemic in which people living with HIV/AIDS are ostracized and are often looked upon with the prejudice, displayed by the Vulcan attitude to Pa'nar Syndrome.  

Peter David commented on the DS9 novel Wrath of the Prophets that: "We were looking at [Wrath of the Prophets] as a straight-up political adventure, but some people may see it as an AIDS parable". ("Stellar Scribe, )

External links 
 
 
 The Joint United Nations Programme on HIV/AIDS – UNAIDS
 International AIDS Society – the world's leading independent association of HIV/AIDS professionals

fr:Sida
Medical conditions