Morphological identification of feline haemoparasites in domestic cats in and around Chennai

Abstract

Haemoprotozoan parasites pose a significant health challenge in animals, primarily affecting the blood and vascular system and leading to a range of associated diseases. Feline haemoprotozoan infections, although often subclinical, can result in considerable morbidity and mortality in affected cats. The present study aimed to determine the prevalence of haemoprotozoan parasites in domestic cats presented to the Madras Veterinary Teaching Hospital and private shelters in and around Chennai. A total of 182 cats were screened for haemoparasites between February and September 2025. Blood smears were examined microscopically for the presence of haemoprotozoa. The results revealed that Cytauxzoon spp. infection was prevalent in three cats (0.016%), while Babesia spp. and Hepatozoon spp. were not observed. Clinically, infected cats exhibited signs such as lethargy, inappetence, and mild anaemia, consistent with the pathogenic effects of haemoprotozoan infections. This study highlights the prevalence of haemoprotozoan infections among domestic cats in the study area, posing a potential health risk to the feline population.