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J Med Entomol. 2011 Mar;48(2):418-21.

Rickettsia rickettsii in Rhipicephalus ticks, Mexicali, Mexico.

Author information

1
Rickettsial Zoonoses Branch, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA. MEremeeva@cdc.gov

Abstract

Circulation of a unique genetic type of Rickettsia rickettsii in ticks of the Rhipicephalus sanguineus complex was detected in Mexicali, Baja California, Mexico. The Mexican R. rickettsii differed from all isolates previously characterized from the endemic regions of Rocky Mountain spotted fever in northern, central, and southern Americas. Rhipicephalus ticks in Mexicali are genetically different from Rh. sanguineus found in the United States.

PMID:
21485383
DOI:
10.1603/me10181
[Indexed for MEDLINE]

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