Investigation of selected gastrointestinal parasites involved in zoonoses in Hue city

Abstract

Background: Approximately 75% of emerging and re-emerging infectious diseases in humans are of animal origin. In Vietnam, viral and bacterial pathogens have been extensively studied and routinely surveilled. However, parasitic agents of zoonotic origin, particularly protozoa and helminths in livestock, remain underestimated. Objectives: To determine the prevalence and species composition of intestinal parasites in selected domestic animals in Hue City and to assess the presence of parasitic agents of zoonotic significance. Materials and Method: A total of 206 fecal samples were collected from domestic animals, including dogs, cats, buffaloes, cattle, domestic pigs, and wild boars in Hue City, Vietnam, during 2022-2023. The samples were examined using the Formalin–Ether concentration technique to detect helminth eggs and intestinal protozoa. Results: The overall prevalence of helminth infections was 48.1%, while protozoan infections reached 94.8%. The prevalence of helminth infections in dogs and cats, buffaloes and cattle, pigs, wild boars, and