Frequency of hemoparasites in dogs treated in veterinary hospitals, between 2021 and 2023, in Recife, Pernmabuco
Vectors; mosquitoes; ticks; bacteria; protozoa
Canine hemoparasitoses are diseases of high relevance in veterinary clinics due to their frequency and impact on animal health. Among the main blood pathogens that affect dogs, those belonging to the genera Babesia, Hepatozoon, Ehrlichia and Anaplasma stand out. These agents cause nonspecific symptoms that include lethargy, fever, and variable clinical signs, depending on the infecting species, the host's immune status, and environmental conditions. They are transmitted mainly by the Rhipicephalus sanguineus tick or by blood transfusions. The nematode Dirofilaria immitis is transmitted by the bite of Culicidae mosquitoes. These parasites affect the circulatory system and can cause symptoms such as coughing, exercise intolerance and heart problems. The aim of this study was to evaluate the frequency of hemoparasites in dogs treated in a private clinic and at the UFRPE Veterinary Hospital, between 2021 and 2023, in Recife, Pernambuco, Brazil. Analyzes were carried out on a database containing results of blood and serum sample tests from 590 animals, which were tabulated and recorded in an Excel spreadsheet. The following variables were evaluated: sex, age, race, parasites detected in direct research, serology and co-infection. The most common hemoparasites in blood samples were Anaplasma platys (27%) and microfilariae (27%) and Ehrlichia canis/Ehrlichia ewingii (50%) in serological tests. Mixed breed dogs were the most affected (53%), followed by Poodles (13%). There was coinfection of A. platys and Babesia spp. (0.2%) and A. platys and Hepatozoon sp. (0.2%). Males were more frequently infected (13%) and animals aged between 7 and 12 years were more frequently infected (3%). In this context, due to the high prevalence and impact of hemoparasitosis on canine health, there is a need to develop strategic prophylaxis measures which require integrated single health measures and education.