| RLO | Rickettsia-like organisms |
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| rickettsia prowazekii | A species of gram-negative, aerobic bacteria that is the aetiologic agent of epidemic typhus fever acquired through contact with lice (typhus, epidemic louse-borne) as well as brill's disease. (12 Dec 1998) |
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| rickettsia | A member of a group of microorganisms that (like viruses) require other living cells for growth but (like bacteria) use oxygen, have metabolic enzymes and cell walls, and are susceptible to antibiotics. Rickettsiae cause a series of diseases (see rickettsial diseases). (12 Dec 1998) |
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| Rickettsia akari | A species causing human rickettsialpox; transmitted by the house mouse mite, Liponyssoides sanguineus; a mild febrile disease of 7 to 10 days is produced with an urban distribution in the northeastern U.S. And in wild or commensal rodents in the countries of the former USSR and Africa. (05 Mar 2000) |
| Rickettsia australis | A species causing a spotted fever, North Queensland tick typhus, clinically and serologically similar to the disease caused by the agent of rickettsialpox; Ixodes holocyclus and I. Tasmani are probable vectors. Small marsupials are suspected reservoirs of this agent, which is found over much of coastal Queensland, especially in secondary scrub and savannah. (05 Mar 2000) |
| Rickettsia burnetii | Former name for Coxiella burnetii. (05 Mar 2000) |
| Rickettsia canis | Former name for Ehrlichia canis. (05 Mar 2000) |
| Rickettsia conorii | A widespread African species probably causing boutonneuse fever in humans, transmitted by various ticks, such as the dog tick Rhipicephalis sanguineus, as well as ticks serve as the reservoir of human infection. (05 Mar 2000) |
| rickettsia infections | Infections by the genus rickettsia. (12 Dec 1998) |
| Rickettsia mooseri | A species similar to Rickettsia prowazekii but with less variation in appearance; the resultant endemic typhus is milder and has a somewhat slower onset. (05 Mar 2000) |
| Rickettsia psittaci | Former name for Chlamydia psittaci. (05 Mar 2000) |
| rickettsia rickettsii | A species of gram-negative, aerobic bacteria that is the aetiologic agent of rocky mountain spotted fever. Its cells are slightly smaller and more uniform in size than those of rickettsia prowazekii. (12 Dec 1998) |
| Rickettsia ruminantium | Former name for Cowdria ruminantium. (05 Mar 2000) |
| Rickettsia sennetsu | The species causing Sennetsu fever in humans. Synonym: Rickettsia sennetsu. (05 Mar 2000) |
| Rickettsia sibirica | The agent of Siberian or North Asian tick typhus, transmitted by various ixodid ticks, which also serve as reservoirs, possibly aided by rodents and hares; the disease resembles Rocky Mountain spotted fever. (05 Mar 2000) |
| rickettsia tsutsugamushi | A species of gram-negative, aerobic bacteria that is the aetiologic agent of scrub typhus. Strains of this species vary considerably in antigenic composition and in some cases in virulence and other biological properties. (12 Dec 1998) |
| rickettsia typhi | The aetiologic agent of murine typhus (see typhus, endemic flea-borne). (12 Dec 1998) |
Synonyms :
| Rickettsia prowazekii |
Epidemic typhus is a form of typhus caused by the bacillus Rickettsia prowazekii, carried by the human body louse Pediculus humanus. Feeding on a human who carries the bacillus infects the louse. R. prowazekii grows in the louse's gut and is excreted in the feces. The disease is transmitted to an uninfected human who scratches the bite and rubs the feces into the wound. Incubation period is one to two weeks. R. prowazekii can remain viable and virulent in the dried feces for many days. ...
Ãâó: en.wikipedia.org/wiki/Rickettsia_prowazekii
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