What Is Rickettsia.

What Is Rickettsia? Rickettsia are bacteria, which are obligate intracellular parasites many disease-causing, that work in vertebrates and are transmitted by bloodsucking bloodsucking arthropods such as fleas , lice and cross offs. Rickettsias are named after their discoverer, the American diagnostician Harold Taylor Ricketts, who died of typhus fever in Mexico after confirming the infectious instrument of that rickettsial disease. Rickettsias unlike other bacteria, but like viruses, they postulation a living master of ceremonies (a living cell) to survive. Rickettsias from infected vertebrates, normally mammals, live and multiply in the gastrointestinal tract of an arthropod aircraft aircraft carrier but do not cause disease on that point; they are transmitted to some other vertebrate, possibly star of another species, by the arthropods mouthparts or faeces. The cells are extremely runty (0.25 um in diameter) rod-shaped, cocci and often pleomorphic microorganisms which have regular bacterial cell walls, no flagella (except for Rickettsiae prowazekii), are gram-negative and multiply via binary program fission only inside host cells. They occur singly, in pairs, or in strands. Rickettsia and its ailments Organism and diseases Rickettsia species Disease Natural cycleb Geographic distribution Vectors Hosts Typhus chemical assemblying: Rickettsia prowazekii Epidemic typhus Human body liceHumans Worldwide Recrudescent typhus none Humans Worldwide Lice, fleas Flying squirrels Eastern ground forces R. typhi murine typhus Fleas Rodents Worldwide Fleas Opossums USA R. genus Felis Murine typhus like Fleas Opossums USA Spotted Fever group: R. rickettsiae gravelly Mountain spotted fever Ticks Small mammals, dogs, rabbits, birdsNorth & group A; southern America R. conorii Boutonneuse fever Ticks Rodents, dogs Africa, Southern Europe, India R. sibirica North Asia strike off typhusTicks Rodents Eurasia, Asia R. japonica Japanese spotted fev er TicksRodents, dogs Japan R. australis Que! ensland tick typhus Ticks Rodents Australia R. akari Rickettsialpox Mites House mice, rats Worldwide Ehrlichioses group: Ehrlichia chaffeensis Human monocytic ehrlichiosis TicksHumans, cervid USA, Europe Ehrlichia Sp Human granulocytic ehrlichiosis Ticks Humans, deer, rodentsUSA, Europe Others:... If you want to sire a full essay, order it on our website: OrderCustomPaper.com

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