Direct evidence of Rickettsia typhi infection in Rhipicephalus sanguineus ticks and their canine hosts.

摘要: Murine typhus is a rickettsiosis caused by Rickettsia typhi , whose transmission carried out rat fleas in urban settlements as classically known, but it also has been related to cat sub-urban alternative cycle that suggested recent reports. These studies remarks addition rats, other animals like cats, opossums and dogs could be implied the of infected obtained from serologically positive have detected samples endemic areas. In Mexico, higher number murine cases Yucatan peninsula, which includes great southeastern region Mexico shows ecologic characteristics similar recently described Texas California at United States. To find are particular this region, we analyzed blood Rhipicephalus sanguineus ticks domestic molecular approaches, demonstrating both were . Following this, isolates genetic sequencing corroborate infection 100% samples. This evidence suggests for first time actively participating typhus, role requires further its precise description. Keywords: Dogs, Vector