Dogs are considered the main reservoir for visceral leishmaniasis infection in humans, a serious disease that is a relevant public health problem due to its wide geographical distribution. To date, there haven’t been notification of Canine Visceral Leishmaniasis (CVL) in official health agencies of Sinop city, state of Mato Grosso. CVL diagnosis is difficult due to the variety of symptoms of the disease. In addition, animals may remain asymptomatic for life. In this study, the frequency of anti Leishmania chagasi antibodies was observed in 201 dogs referred to the clinical routine of the Veterinary Hospital of the Federal University of Mato Grosso, Campus of Sinop, during a 67 days period, through immunochromatographic method (DPP). Obtained results showed that seven animals were positive while one hundred ninety four were negative to the test. This result is relevant as far as it may increase the risk of CVL dispersion to non-endemic areas, highlighting the need of implementation effective measures to quickly detect Leishmania chagasi and prevent epidemiological situations.

Trypanosoma is a hemoflagellate protozoan that infects a variety of animal species and is transmitted in different ways. It is a zoonosis and anthropozoonosis of great importance in veterinary medicine. The present work aims to describe the clinical and laboratory alterations in a free-living dog in a rural area, infected by Trypanosoma spp, treated in the municipality of Sinop, north of Mato Grosso. Blood samples were collected for blood count, alanine aminotransferase (ALT) activity, creatinine, creatine kinase concentrations. The results found were a normochromic microcytic anemia, lymphopenia, trypomastigote forms of Trypanosoma spp. ALT and creatinine measurements were normal, but the serum creatine kinase level was above normal limits. Imidocarb dipropionate at a dose of 7 mg / kg subcutaneously in a single dose was prescribed.

Intestinal obstruction is among the most common causes requiring surgical intervention in the small animal clinic. The more proximal and complete the obstruction, the more acute and intense the signs will be and the greater the likelihood of dehydration, electrolyte imbalance and even death. Among the causes of intestinal obstruction, intussusception may be the one with the highest prevalence. It is usually of idiopathic origin, has no racial and sexual predisposition, and its highest incidence is found in young animals. Predisposing factors are often associated, such as parasitism, gastroenteritis and foreign bodies where the treatment is usually surgical. In the present study we describe a case of a feline, female, one year and two months old with intestinal obstruction, presenting with four days' emesis, hypophagia, dehydration and apathy. This work aims to contribute to the knowledge and alert to a rapid differential diagnosis of intestinal obstructions which is a frequent and important disorder in the small animal clinic and is not always diagnosed in time.