Field Collection and Genetic Classification of Tick-borne Rickettsiae and Rickettsiae-like Pathogens from South Texas:Coxiella burnetiiIsolated from Field-collectedAmblyomma cajennense

Autor:	Matt W. Buchholz, Jill E. Parker, Keith Blount, Johnathan L. Kiel, Wes W. Walker, David M. Sanders
Rok vydání:	2008
Předmět:	Base Sequence biology General Neuroscience Q fever Disease Tick bacterial infections and mycoses biology.organism_classification Coxiella burnetii medicine.disease Texas Virology General Biochemistry Genetics and Molecular Biology Amblyomma cajennense Ticks History and Philosophy of Science Immunity Vector (epidemiology) parasitic diseases medicine Animals Dermacentor andersoni DNA Primers
Zdroj:	Annals of the New York Academy of Sciences. 1149:208-211
ISSN:	1749-6632 0077-8923
Popis:	We are reporting the first known isolation of the Q-fever agent Coxiella burnetii from field-collected cayenne ticks Amblyomma cajennense in North America. Q-fever affects a number of domestic ungulates where it can lead to abortion in sheep and goats. There is far less known about the disease's effects on wild species, primarily because of the tendency of the disease to self resolve and to provide long-term immunity to subsequent infections. The first recovery of C. burnetii in North America was from the tick species Dermacentor andersoni. Since the original isolation C. burnetii has been recovered from five other North American tick species. The currently accepted mode for the majority of human infections is inhalation. The Centers for Disease Control and Prevention, Division of Viral and Rickettsial Diseases, Rickettsial Zoonoses Branch asserts the Q-fever agent as requiring as few as one organism to cause disease via inhalation in susceptible humans. However, with more and more isolations from ticks, evidence linking C. burnetii and ticks is mounting. The true role of tick species as competent vectors is still unconfirmed. Preemptive field collections of possible vector arthropods, hosts, and reservoirs can provide invaluable baseline environmental data that will prove supportive in follow-up studies and abatement efforts.
Databáze:	OpenAIRE
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