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:
Yersinia pestis: The bacteria that causes the bubonic plague which in the year 541 (as the Black Death) and later in the Middle Ages decimated Europe. The effects of the plague are described in the nursery rhyme We all fall down.. Y. pestis mainly infects rats and other rodents which are the prime reservoir for the bacteria. Fleas are the prime vectors carrying the bacteria from one species to another. They bite rodents infected with Y. pestis, then they bite people and so transmit the disease to them. Transmission of the plague to people can also occur from eating infected animals such as squirrels.