Quarterly Newsletter


The IVG Hospitals Quarterly Veterinary Newsletter features articles of interest to the veterinary medical community, written by veterinarians and veterinary specialists at our four locations.

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Page 9 of 17

Overview of Tick Borne Infections Marion Haber, DVM, DACVIM Marion Haber, DVM, DACVIM practices at Massachusetts Veterinary Referral Hospital in Woburn, MA. Tick Borne Infection Vector Anaplasma platys Unknown Poss Rhipicephalus sanguineus (Brown Dog Tick) Reservoir / Location Incubation 1-2 weeks Pathogenesis Morulae in platelets just prior to thrombocytopenia – disappear quickly Thrombocytopenia likely related to immune-mediated mechanism DDX Other Clinical Signs Physical Exam Lab Findings Mild to subclinical Slight increase in temp Europe, S. Africa – fever, splenomegaly, hemorrhages Thrombocytopenia at 1-2 week intervals Transient dec in total leukocyte contents and mild anemia in first month Cytology- morulae in platelets Diagnosis Serology – no specific IFA- cross-reactive to A. phagocytophilum PCR – diagnostic/confirmation blood and consider spleen Treatment |9| See A. phagocytophilum

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