Resumo

TARRAGONA, EL et al. Primer reporte de un caso de ehrlichiosis monocítica canina en la provincia de Santa Fe, Argentina. FAVE, Secc. Cienc. vet. [online]. 2019, vol.18, n.2, pp.49-54. ISSN 2362-5589.

Canine monocytic ehrlichiosis (CME) is a disease caused by Ehrlichia canis bacteria. It has a globally distributed and cause high mortality in domestic canines with nonspecific symptoms, which makes clinical diagnosis difficult. Eherlichia canis is transmitted to a host by the tick Rhipicephalus sanguineus sensu lato. In Argentina two lineages of this species are recognized (tropical and sensu stricto). The objective of this work is to report the first confirmed case of CME by E. canis in endemic area of R. sanguineus s.s from Rafaela, Santa Fe. On February 2, 2019 a canine arrived at the private clinic with non-specific symptoms such as late / night hyperthermia, depression, lethargy, aplasia, loss of appetite and weight loss, as well as, antecedent of tick parasitism. The pet had mild anemia (4,730,000/ m³), increased liver enzymes (AST/ASA/GOT = 72 U/l) and splenomegaly. The in vitro serological test and PCR to amplify E. canis DNA were positive, so the dog received treatment for CME with doxycycline 10 mg/kg/day for 30 days, anti-inflammatory for 5 days and liver protector. After 60 days of starting the treatment, the animal regained its normal weight and after 120 days the PCR have given negative result, checking the effectiveness of the treatment.

Palavras-chave : Canine monocytic ehrlichiosis; Ehrlichia canis; Rhipicephalus sanguineus; Santa Fe; Argentina.

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