Tapeworms of the Taenia and Echinococcus species can also be contracted by humans via accidental ingestion of cat feces containing infectious tapeworm eggs. The only form of Echinococcus transmissable by cats is that causing alveolar echinococcus.
Anyone can contract HIV, and while IDUs are at great risk because of practices related to their drug use, anyone who engages in unsafe sex (e.g., unprotected sex with an infected partner) could be exposed to HIV infection.frican-Americans account for a higher proportion of HIV infections than any other population at all stages of the disease from initial infection to death (see text box). Moreover, specific minority subgroups are at particular risk.
Sub-Saharan Africa is the region worst-affected by HIV and AIDS. HIV/AIDS in South Africa is a prominent health concern; South Africa has the highest prevalence of HIV/AIDS compared to any other country in the world with 5,6 million people living with HIV, and 270,000 HIV related deaths recorded in 2011. (UNAIDS) Many factors contribute to the spread of HIV.