What Is Rickettsia? Rickettsia are bacteria, which are obligate intracellular parasites many disease-causing, that stand in vertebrates and are transmitted by bloodsucking bloodsucking arthropods such as fleas , lice and conditions. Rickettsias are named after their discoverer, the American diagnostician Harold Taylor Ricketts, who died of typhus fever in Mexico after confirming the infectious shoplifter of that rickettsial disease. Rickettsias unlike other bacteria, but like viruses, they entreaty a living troops (a living cell) to survive. Rickettsias from infected vertebrates, commonly mammals, live and regurgitate in the gastrointestinal tract of an arthropod aircraft mail carrier but do not cause disease there; they are transmitted to some other vertebrate, possibly oneness of another species, by the arthropods mouthparts or faeces. The cells are extremely excellent (0.25 um in diameter) rod-shaped, cocci and often pleomorphic microorganisms which have typi c 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 unhealthinesss Organism and diseases Rickettsia species Disease Natural cycleb Geographic distribution Vectors Hosts Typhus chemical sort: Rickettsia prowazekii Epidemic typhus Human body liceHumans Worldwide Recrudescent typhus none Humans Worldwide Lice, fleas Flying squirrels Eastern the States 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 & international ampere; southern America R. conorii Boutonneuse fever Ticks Rodents, dogs Africa, Southern Europe, India R. sibirica North Asia see to it typhusTicks Rodents Eurasia, Asia R. japonica Japanese spotted fever TicksRodents, dogs Japan R. australis Queensland tick typhus Ticks Rodents Australia R. akari Rickettsialpox Mites House mice, rats Worldwide Ehrlichioses group: Ehrlichia chaffeensis Human monocytic ehrlichiosis TicksHumans, deer USA, Europe Ehrlichia Sp Human granulocytic ehrlichiosis Ticks Humans, deer, rodentsUSA, Europe Others:... If you want to inhibit a full essay, order it on our website: OrderCustomPaper.com
If you want to get a full essay, visit our page: write my paper