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The Importance of Rickettsiales Infections
2016The Gram-negative bacteria of the order Rickettsiales are obligate intracellular parasites that infect a variety of hosts including humans, animals, and insects. The order Rickettsiales comprises the families Rickettsiaceae, Anaplasmataceae, and Midichloriaceae.
Sunil Thomas +3 more
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Divorce entre rickettsiales et chlamydiales
Médecine et Maladies Infectieuses, 1975Resume Les differences profondes existant entre rickettsies et chlamydies ont conduit en 1974 le Comite Internationnal de Nomenclature a creer un nouvel ordre, celui des Chlamydiales, entierement distinct de celui des Rickettsiales dont elles faisaient partie jusqu'alors.
J. Levaditi +3 more
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Intracellular pathogens go extreme: genome evolution in the Rickettsiales
Trends in Genetics, 2007The Rickettsiales, a genetically diverse group of the alpha-Proteobacteria, include major mammalian pathogens, such as the agents of epidemic typhus, scrub typhus, ehrlichioses and heartwater disease. Sequenced genomes of this bacterial order have provided exciting insights into reductive genome evolution, antigenic variation and host cell manipulation.
Alistair C, Darby +4 more
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Rickettsiales: Laboratory Diagnosis
2016As undifferentiated febrile illnesses, infections caused by organisms in the genus Rickettsia, Orientia, Ehrlichia, and Anaplasma are often difficult to diagnose. Clinical suspicion is the key to the initiation of timely therapy and clinical workup. Serology is the mainstay of diagnostic methods, but since antibody production occurs later in illness ...
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Biodiversity of “Non-model” Rickettsiales and Their Association with Aquatic Organisms
2016Representatives of the order Rickettsiales are obligate intracellular bacteria, traditionally including well-studied pathogens of humans and other vertebrates, such as Rickettsia, Orientia, Anaplasma, and Ehrlichia. In the last two decades, studies based on molecular characterization techniques have reshaped our view on the biodiversity of ...
CASTELLI, MICHELE +2 more
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A rickettsiales-like infection in the pacific razor clam, Siliqua patula
Journal of Invertebrate Pathology, 1984Abstract An intracellular procaryotic rickettsiales-like organism was discovered in the digestive absorptive epithelium of the Pacific razor clam, Siliqua patula, from the Pacific Coast of Washington State. Of 80 animals examined, 30% contained the organisms, and all positive animals were between 1.5 mm and 3.0 cm shell length. The organisms appeared
R A, Elston, M G, Peacock
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Rickettsiales: Treatment and Management of Human Disease
2016When a rickettsiosis is suspected, prompt empiric antibiotic therapy should be initiated. Clinical recognition is key to timely treatment. Early administration of effective antibiotics can quickly abate illness and prevent severe complications. Tetracyclines are the drug class of choice for all these infections, with doxycycline being the preferred ...
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The “Other” Rickettsiales : an Overview of the Family “ Candidatus Midichloriaceae”
Applied and Environmental Microbiology, 2022Vittorio Boscaro +2 more
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Rickettsiales‐like organisms in bivalves and marine gastropods: a review
Reviews in Aquaculture, 2020Roberto Cruz-Flores +1 more
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