Search results
Results from the WOW.Com Content Network
Ehrlichiosis (/ ˌ ɛər l ɪ k i ˈ oʊ s ɪ s /; also known as canine rickettsiosis, canine hemorrhagic fever, canine typhus, tracker dog disease, and tropical canine pancytopenia) is a tick-borne disease of dogs usually caused by the rickettsial agent Ehrlichia canis.
Although R. helvetica was initially thought to be harmless in humans and many animal species, some individual case reports suggest that it may be capable of causing a nonspecific fever in humans. [4] [5] [7] In 1997, a man living in eastern France seroconverted to Rickettsia 4 weeks after onset of an unexplained febrile illness. [8]
The Weil–Felix test demonstrated low sensitivity (33%) in diagnosing acute rickettsial infections and low specificity, with a positive titre of 1:320 seen in 54% of healthy volunteers and 62% of non-rickettsial fever patients. Therefore, the use of the WFT should be discouraged in the diagnosis of acute rickettsial infections. [citation needed]
Neorickettsia Scientific classification Domain: Bacteria Phylum: Pseudomonadota Class: Alphaproteobacteria Order: Rickettsiales Family: Ehrlichiaceae Genus: Neorickettsia Philip et al. 1953 (Approved Lists 1980) Species See text. Neorickettsia is a genus of bacteria. Species or strains in this genus are coccoid or pleomorphic cells that reside in cytoplasmic vacuoles within monocytes and ...
Rickettsia conorii is a Gram-negative, obligate intracellular bacterium of the genus Rickettsia that causes human disease called boutonneuse fever, Mediterranean spotted fever, Israeli tick typhus, Astrakhan spotted fever, Kenya tick typhus, Indian tick typhus, or other names that designate the locality of occurrence while having distinct clinical features.
[1] [4] R. typhi is a flea-borne disease that is best known to be the causative agent for the disease murine typhus, which is an endemic typhus in humans that is distributed worldwide. [3] As with all rickettsial organisms, R. typhi is a zoonotic agent that causes the disease murine typhus , displaying non-specific mild symptoms of fevers ...
Rickettsialpox is a mite-borne infectious illness caused by bacteria of the genus Rickettsia (Rickettsia akari). [1] Physician Robert Huebner and self-trained entomologist Charles Pomerantz played major roles in identifying the cause of the disease after an outbreak in 1946 in a New York City apartment complex, documented in "The Alerting of Mr. Pomerantz," an article by medical writer Berton ...
They are obligate intracellular parasites, and some are notable pathogens, including Rickettsia, which causes a variety of diseases in humans, and Ehrlichia, which causes diseases in livestock. Another genus of well-known Rickettsiales is the Wolbachia , which infect about two-thirds of all arthropods and nearly all filarial nematodes. [ 2 ]