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.
Almost all of the regionâs nations have generalized HIV epidemicsâthat is, their national HIV prevalence is greater than 1%. In eight countries, 10% or more of adults are estimated to be HIV-positive. South Africa has the highest number of people living with HIV in the world (7.1 million). Swaziland has the highest prevalence in the world (27.2%). Western and Central Africa.