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Rickettsiales |
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Rickettsiales /Rick·ett·si·a·les/ (rĭ-ket″se-a´lēz) an order of gram-negative bacteria occurring as elementary bodies that typically multiply only inside cells of the host. Parasitic for vertebrates and invertebrates, which serve as vectors, they may be pathogenic for humans and other animals. Rickettsiales an order of bacteria containing the families Rickettsiaceae and Anaplasmataceae. Small, obligately intracellular, gram-negative coccobacillary bacteria parasitizing host cells as a source of ATP. They are found in wild mammals, ticks, lice and trematodes and are transmitted by bites of arachnid or insect bites or by ingestion of trematodes. Generally replicate within erythrocytes, leukocytes or endothelial cells. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Rickettsia rickettsii Rickettsia tsutsugamushi Rickettsiaceae rickettsial rickettsial disease rickettsial infection rickettsial interference phenomenon Rickettsiales rickettsialpox rickettsicidal Rickettsieae rickettsiosis RID RID-HD rida |
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