serosurvey of tick-borne pathogens in dogs from urban and rural areas from parana state, brazil.considering the zoonotic potential of tick-borne disease (tbd) agents and the fact that dogs may act as sentinels for human infection, the aim of the present study was to determine the seroprevalence of tbd agents and risk factors for exposure in two different canine populations from parana state, southern brazil. a total of 138 dog serum samples from urban (ua) (n=68) and rural (ra) (n=70) areas were tested with commercial elisa rapid test for anaplasma phagocytophilum, ehrlichia canis and borr ...201324252955
detection of ehrlichia chaffeensis in brazilian marsh deer (blastocerus dichotomus).ehrlichia chaffeensis was detected for the first time in blood samples from brazilian marsh deers (blastocerus dichotomus) captured in the marshes of parana river in southeast brazil in 1998. seven edta-blood samples from deers were analyzed by pcr and nested pcr for presence of ehrlichia chaffeensis, ehrlichia ewingii, ehrlichia canis, neoriickettsia risticii, anaplasma phagocytophilum and anaplasma marginale. three samples showed positive reactions for e. chaffeensis and anaplasma marginale. n ...200616621285
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