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.
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1 March 2011
Rickettsia rickettsii in Rhipicephalus Ticks, Mexicali, Mexico
Marina E. Eremeeva,
Maria L. Zambrano,
Luis Anaya,
Lorenza Beati,
Sandor E. Karpathy,
Maria Margarida Santos-Silva,
Beatriz Salceda,
Donald Macbeth,
Hector Olguin,
Gregory A. Dasch,
Celia Alpuche Aranda
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Journal of Medical Entomology
Vol. 48 • No. 2
March 2011
Vol. 48 • No. 2
March 2011
genotyping
Rhipicephalus ticks
Rickettsia rickettsii