2017 ACVIM Forum Research Abstract Program

In conclusion, major difference in canine MRSP carriage rates may exist between urban and rural areas. Leishmania spp., Neorickettsia spp., and Bartonella spp. in presumptively healthy dogs presenting to the Oklahoma State University VTH for annual wellness evaluation. A secondary objective was to correlate PCR results with historical information, physical examination, and clinicopathologic results. All dogs enrolled in the study had a client survey completed, SNAP Ã’ 4Dx Plus Ã’ (IDEXX), CBC, chemistry panel, and vector-borne disease PCR. One hundred and twelve dogs (61 females, 51 males) with a median age of 5 years (range: 0.75-14 years) were enrolled in the study between July 2016 and November 2016. SNAP Ã’ 4Dx Plus Ã’ results showed that 13 dogs (11.6%) were positive for Ehrlichia spp., while only 1 of 13 was Ehrlichia PCR positive. Eight dogs (7.1%) were PCR positive for a vector-borne pathogen, with 6/8 infected with Candidatus Mycoplasma haematoparvum, 1 with Mycoplasma haemocanis, and 1 with Ehrlichia ewingii. Four of 8 infected dogs had normal CBC and chemistry results, while 2/8 dogs had clinicopathologic abnormalities potentially attributed to vector-borne disease (thrombocytopenia 62,000/uL and hyperglobulinemia 4.0 g/ dL). Anemia was not documented in any dog infected with Mycoplasma spp. The prevalence of vector-borne disease in healthy dogs presenting to the Oklahoma State University VTH is fairly low, with Mycoplasma spp. infection being most common. Anaplasma phagocytophilum infection has been commonly associated with clinical disease in humans and dogs. However, A. phagocytophilum infection has not routinely been associated with clinical disease in cats. Recent reports have shown that Anaplasma infection can cause significant illness in cats. The objective of this study was to determine the prevalence of A. phagocytophilum infection in adult feral cats in Massachusetts, an endemic area for A. phagocytophilum and its tick vector Ixodes scapularis.