Identificación de estreptococos grupo c de Lancefield en hisopados faríngeos de perros atendidos en la clínica veterinaria UTMACH

Abstract

This thesis focuses on the identification and characterization of β-hemolytic streptococci isolated from pharyngeal swabs of dogs undergoing surgery at the Clinical Teaching of Veterinary Specialties of UTMACH. The research addresses the significance of these pathogens, given their zoonotic relevance and the risk they pose to both animal and human health. Fifty-five pharyngeal swab samples were collected, and 90 colonies were isolated and processed following standardized microbiological protocols, including isolation on blood agar and subsequent latex agglutination tests. These tests were crucial in attempting to determine the serological group of the isolated streptococci, although the results indicated that the kit used was not sensitive enough to accurately classify all samples, highlighting the need to explore more precise alternatives for bacterial identification. The obtained results underscore the presence of β-hemolytic streptococci in the studied canine population, emphasizing the importance of conducting routine checks and adopting preventive measures in the management of these animals, especially in clinical and surgical settings. In conclusion, this study not only provides valuable data on the prevalence of these pathogens in dogs but also highlights the need to improve diagnostic techniques to ensure accurate identification and, therefore, proper management of associated zoonotic risks. This thesis contributes to the knowledge in the field of veterinary microbiology, also proposing future research directions to optimize bacterial identification methods.