Rickettsiosis/rickettsioses are a group of diseases generally caused by species of Rickettsia, a genus of obligate intracellular bacteria. Most of the Rickettsioses are transmitted by ticks, but they can also be transmitted by fleas, lice and mites. Although they are widely distributed throughout the world, the species and associated human clinical diseases vary depending on the geographical locations. Rickettsiosis can be classified into two main groups: the spotted fever group, transmitted by ticks or mites and the typhus group, mainly transmitted by lice or fleas. Many new pathogenic Rickettsiae continue to be identified in recent years.
Prevention of tick bites
The risk of tick-borne infections, including rickettsiosis, is reduced by avoiding tick bites and removing ticks from the body.Find out how to protect yourself from tick bites
Learn more about the geographical distribution of tick species in Europe, including Ixodes Ricinus, which can transmit rickettsiosis.View our tick maps