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.
A complicating factor in assessing incidence is that the HIV and AIDS epidemic in Africa has been associated with a concomitant increase in community-acquired bacteraemia due to non-typhoidal Salmonella spp. such as S. typhimurium - an illness that may be clinically indistinguishable from typhoid. Typhoid and paratyphoid fever in the UK In the UK, an average of almost 500 cases were reported per year between 2006 and 2010. This is a 25% increase on the previous five years.