Bodily fluids: Aids (acquired immune deficiency syndrome) is caused by infection with the human immunodeficiency virus. Hiv is spread in bodily fluids, including semen, vaginal secretions, blood, and breast milk. People usually get aids by having unprotected sex with an infected partner, sharing needles with an infected person, or breastfeeding from an infected mother. ...Read more.
Who Cares is a scenario. In this scenario, poor countries are reduced in their ability to detect and research a Cure for the player's disease, thus reducing difficulty. Its opposite is Created Equal, which increases the ability of poor countries to do the above. As taken from the Scenarios menu:
People can get plague when they are bitten by a flea that carries the plague bacteria from an infected rodent. In rare cases, people get the disease when handling an infected animal. Plague lung infection is called pneumonic plague. It can be spread from person to person. When someone with pneumonic plague coughs, tiny droplets carrying the bacteria move through the air. Anyone who breathes in these particles may catch the disease.