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.
According to the 2007 WHO/UNAIDS estimates, at the end of 2007, 33.2 million people were living with HIV. Some 2,5 million people became newly infected that year and 2.1 million died of AIDS, which maintains AIDS as a leading cause of death in Africa.More than 95% of HIV infections are in developing countries, two-thirds of them in sub-Saharan Africa, where over 28 million people are living with HIV.he disease is having a major impact on social and economic development. Poverty is increasing in many countries as households lose one or more breadwinners to AIDS. And both public services and private companies are reeling from the impact of HIV-related sickness and deaths among their workforce.