| amblyomma mixtum koch, 1844 (acari: ixodidae): first record confirmation in colombia using morphological and molecular analyses. | up to some years ago, the taxon amblyomma cajennense represented a single tick species in the new world, from southern united states to northern argentina. recent studies, based on genetic, reproductive and morphological data reorganized this taxon into a complex of the following 6 valid species: a. cajennense sensu stricto, amblyomma mixtum, amblyomma sculptum, amblyomma interandinum, amblyomma tonelliae, and amblyomma patinoi. according to this classification, the a. cajennense complex is curr ... | 2016 | 27062448 |
| distribution of spotted fever group rickettsiae in hard ticks (ixodida: ixodidae) from panamanian urban and rural environments (2007-2013). | tick-borne rickettsiosis is an important emerging disease in panama; to date, there have been 12 confirmed cases, including eight fatalities. to evaluate the distribution of rickettsiae in panamanian ticks, we collected questing and on-host ticks in urban and rural towns in elevations varying between 0 and 2300 m. a total of 63 sites (13 urban and 50 rural towns) were used to develop models of spatial distributions. we found the following tick species: rhipicephalus sanguineus s.l. (present in 5 ... | 2016 | 27068930 |
| detection of rickettsiae in fleas and ticks from areas of costa rica with history of spotted fever group rickettsioses. | outbreaks of spotted fevers have been reported in costa rica since the 1950s, although vectors responsible for transmission to humans have not been directly identified. in this study, species of rickettsia were detected in ectoparasites from costa rica, mostly from five study sites where cases of spotted fevers have been reported. ticks and fleas were collected using drag cloths or directly from domestic and wild animals and pooled according to species, host, and location. pools were analyzed in ... | 2016 | 27592065 |