Hepatitis C is a liver disease caused by infection with the hepatitis C virus (HCV). HCV can cause both acute and chronic hepatitis infection, ranging in severity from a mild illness that lasts only a few weeks to a serious, lifelong illness resulting in cirrhosis and liver cancer.
Avian influenza is an infectious viral disease mainly found in birds, but under certain circumstances infections can also occur in humans even though the risk is generally very low.
HIV is a virus which attacks the immune system and causes a lifelong severe illness with a long incubation period. The end-stage of the infection, acquired immunodeficiency syndrome (AIDS), results from the destruction of the immune system.
Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum. It may also be transmitted mother-to-child (congenital syphilis).
Tularaemia is a zoonosis (infection that could transmit from animals to humans), caused by the bacterium Francisella tularensis, capable of surviving for weeks at low temperatures in water, moist soil, hay, straw or animal carcasses.
Besides Yersinia pestis (see plague) the Yersinia group of bacteria also includes two species frequently causing illness (mainly enteritis) in humans; Yersinia enterocolitica and Yersinia pseudotuberculosis.
Listeriosis is a disease caused by Listeria monocytogenes. The disease primarily causes problems in pregnant women, newborns, and adults with a weakened immune system.