Rickettsia typhi IN RODENTS AND R. felis IN FLEAS IN YUCATÁN AS A POSSIBLE CAUSAL AGENT OF UNDEFINED FEBRILE CASES

Authors

  • Gaspar PENICHE-LARA Universidad Autónoma de Yucatán; Facultad de Medicina; Laboratorio de Enfermedades Infecciosas y Parasitarias I; Universidad Autónoma de Yucatán
  • Karla DZUL-ROSADO Universidad Autónoma de Yucatán; Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”; Laboratorio de Enfermedades Emergentes y Re-emergentes; Universidad Autónoma de Yucatán
  • Carlos PÉREZ-OSORIO Universidad Autónoma de Yucatán; Facultad de Medicina; Laboratorio de Enfermedades Infecciosas y Parasitarias I; Universidad Autónoma de Yucatán
  • Jorge ZAVALA-CASTRO Universidad Autónoma de Yucatán; Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”; Laboratorio de Enfermedades Emergentes y Re-emergentes; Universidad Autónoma de Yucatán

Abstract

Rickettsia typhi is the causal agent of murine typhus; a worldwide zoonotic and vector-borne infectious disease, commonly associated with the presence of domestic and wild rodents. Human cases of murine typhus in the state of Yucatán are frequent. However, there is no evidence of the presence of Rickettsia typhi in mammals or vectors in Yucatán. The presence of Rickettsia in rodents and their ectoparasites was evaluated in a small municipality of Yucatán using the conventional polymerase chain reaction technique and sequencing. The study only identified the presence of Rickettsia typhi in blood samples obtained from Rattus rattus and it reported, for the first time, the presence of R. felis in the flea Polygenis odiosus collected from Ototylomys phyllotis rodent. Additionally, Rickettsia felis was detected in the ectoparasite Ctenocephalides felis fleas parasitizing the wild rodent Peromyscus yucatanicus. This study’s results contributed to a better knowledge of Rickettsia epidemiology in Yucatán.

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Published

2015-04-01

How to Cite

PENICHE-LARA, G., DZUL-ROSADO, K., PÉREZ-OSORIO, C., & ZAVALA-CASTRO, J. (2015). Rickettsia typhi IN RODENTS AND R. felis IN FLEAS IN YUCATÁN AS A POSSIBLE CAUSAL AGENT OF UNDEFINED FEBRILE CASES. Revista Do Instituto De Medicina Tropical De São Paulo, 57(2), 129-132. Retrieved from http://www.revistas.usp.br/rimtsp/article/view/100941

Issue

Section

Bacteriology