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1, Macho Ctenocephalides felis felis; 2, hembra Ctenocephalides felis felis; 3, macho Pulex porcinus; 4, hembra Pulex porcinus; 5, macho Rhopalopsyllus australis australis; 6, hembra Rhopalopsyllus australis australis; 7, macho Rhopalopsyllus saevus; 8, hembra Rhopalopsyllus saevus.
Source publication
La Reserva de la Biosfera de Calakmul es considerada un área importante ya que contiene ecosistemas con una gran diversidad y fragilidad, además de tener un alto número de especies endémicas, amenazadas y en peligro de extinción; un ejemplo es la diversidad de mamíferos que existe en esta área; sin embargo, a pesar de reconocer la gran diversidad d...
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A total of 200 dogs and 137 cats were examined for the presence of fleas, ticks and lice in Bishoftu, central Oromia, Ethiopia from September 2009 through April 2010. At least one ectoparasite species was found on 97% (194/200) of the dogs and 90.5% (124/137) of the cats. On dogs, fleas (Ctenocephalides felis (95%), Pulex irritans (20.5%), Echidnop...
Citations
Los bosques tropicales del sureste mexicano son muy importantes por su gran biodiversidad, su contribución a la calidad del aire, provisión de agua, su acervo biocultural y por los recursos naturales que ofrece. Sin embargo, en ellos también se presentan algunos riesgos, como la exposición a agentes infecciosos transmitidos por la fauna silvestre.
In search for the vector of the recently recognized spotted fever rickettsiosis of the Yucatán, ticks, fleas, and lice were collected from vegetation and dogs in localities where seropositive persons had been found. The arthropods were examined by polymerase chain reaction (PCR) using primers for the genus-specific 17-kDa protein gene followed by restriction fragment length polymorphism (RFLP) and DNA sequencing. Eleven (20%) of 54 pools of Ctenocephalides felis fleas contained DNA of Rickettsia felis. None of 219 Amblyomma cajennense, 474 Rhiphicephalus sanguineus, 258 Boophilus sp. ticks, and 33 Poliplax species lice contained DNA of Rickettsia. The identity of the rickettsial DNA was confirmed as R. felis by PCR/RFLP for the citrate synthase and outer membrane protein A genes and by DNA sequencing. The results indicate that the host of R. felis in Yucatán is C. felis and suggest that the spotted fever rickettsiosis that has infected >5% of the population of the Yucatán and can present as a dengue-like illness is likely to be caused by R. felis.
