The present study was carried out in order to diagnose the prevalence of Parvovirus canine in patients with hemorrhagic gastroenteritis in the district of Tarapoto, province and region of San Martín in the year 2016, from a population of 4,740 dogs. To evaluate the prevalence of Parvovirus canine through the use of the CPV Ag Antigen Rapid Test Kit (Anigen Rapid Test Kit for CPV Ag), to identify the disease in relation to race, sex, age, size and neighborhood of Infected animals in Tarapoto district, as well, Proposed preventive-prophylactic measures in the presence of canine Parvovirus, it was concluded that Parvovirus canine disease in dogs with hemorrhagic gastroenteritis, it don’t have relation between the dependent variable outcome ( Positive or negative) by using the CPV Ag Antigen Rapid Test (Anigen Rapid Test Kit for CPV Ag). And the independent variables (sex, race, age, size...