Ixodes scapularis ticks were collected in 2000 and 2001 from two areas in Pennsylvania and tested for the presence of Anaplasma phagocytophilum and Borrelia burgdorferi by PCR and DNA sequencing. Of the ticks collected from northwestern and southeastern Pennsylvania, 162 of 263 (61.6%) and 25 of 191 (13.1%), respectively, were found to be positive for B. burgdorferi. DNA sequencing showed >99% ...

Ixodes scapularis, the tick vector of Lyme disease and human granulocytic ehrlichiosis (HGE), is prevalent in much of southern New York state. The distribution of this species has increased, as have reported cases of both Lyme disease and HGE. The unreliability of case reports, however, demonstrates the need for tick and pathogen surveillance in order to accurately define areas of high risk. In...

Canine monocytic ehrlichiosis is a tick borne disease caused by Ehrlichia canis, an obligate intracellular rickettsial organism belonging to the family Anaplasmataceae. Canine ehrlichiosis causes hemaotological changes among infected animals which could be used as a potential predictor for diagnosing canine monocytic ehrlichiosis (CME). Ninety-four blood samples were obtained from canines that ...

Zoonosis Update T he term ehrlichiosis has been broadly applied to a variety of diseases of humans and animals caused by pathogens formerly classified in the genus Ehrlichia. However, a recently proposed taxonomic reorganization 1 has recommended the reclassifications of some former Ehrlichia species under the genera Anaplasma and Neorickettsia and Cowdria ruminantium under the genus Ehrlichia....

This study aimed to analyze the hematological parameters, blood viscosity, and cytokines of dogs infected by Ehrlichia canis untreated treated with doxycycline. Initially, 47 were examined, 36 suspected have canine monocytic ehrlichiosis, which was confirmed through molecular polymerase chain reaction tests. consisted 25 dogs, 11 being healthy 14 testing positive for E. canis. The divided into ...