Rickettsial refers to a group of bacteria called Rickettsia that can cause diseases in humans and animals. These bacteria are typically carried by ticks, fleas, and lice and can cause fevers, rashes, and other symptoms. Full definition
Other examples of rickettsial organisms are Riskettsia rickettsi, which causes Rocky Mountain Spotted Fever and Ehrlichia risticii, which causes Potomac Fever in horses. (vetinfo.com)
Frequently tested organisms include Rickettsial diseases, Toxoplasma, Neospora, Cryptococcus, and Distemper virus. (hopevs.com)
On April 2, 2008, the Division of Viral and Rickettsial Diseases of the CDC, filed a report regarding Importation of Dogs into the United States and in the summary of that report it states: (thedogplace.org)