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Ann N Y Acad Sci. 2005 Dec;1063:327-32.

Detection of a typhus group Rickettsia in Amblyomma ticks in the state of Nuevo Leon, Mexico.

Author information

1
Laboratorio de Entomologia Medica, Facultad de Biologia, Universidad Autonoma de Nuevo Leon, Monterrey, Mexico. medisanch@yahoo.com

Abstract

The state of Nuevo Leon, Mexico has had outbreaks of typhus group rickettsiosis, most recently recognized in 1997. Evaluation of the sera of 345 patients with a dengue-like illness revealed that 25.5% had antibodies reactive with typhus group rickettsiae and 16% had antibodies to Rickettsia parkeri. Rickettsiae were detected by PCR and shell-vial isolations in the field-collected Amblyomma ticks. Molecular characterization by DNA sequence analysis of the gltA, ompB, and 17-kDa gene identified the organisms to be R. prowazekii.

PMID:
16481535
DOI:
10.1196/annals.1355.052
[Indexed for MEDLINE]

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