Prevalencia de Giardia duodenalis en caninos domésticos de Quisapincha, Ecuador
Resumen
Objetivo. Determinar la prevalencia de Giardia duodenalis en perros domiciliados de la parroquia Quisapincha y la asociación con la edad, sexo y control parasitario previo. Materiales y métodos: Se recolectaron 122 muestras fecales de perros seleccionados desde el registro parroquial. El diagnóstico se efectuó mediante flotación de Faust con el uso de sulfato de zinc al 33 % y la intensidad se estimó como quistes por gramo (QPG) con cámara de McMaster. Se estimó la prevalencia de Giardia duodenalis con un intervalo de confianza del 95 % y se aplicó la prueba de chi cuadrado (p < 0,05) para la evaluación de la asociación entre variables. Resultados: La prevalencia fue 3,28 % (4/122). Todos los positivos evidenciaron la eliminación de quistes (150–450 QPG; promedio 250). El 50 % de los casos ocurrió en perros geriátricos, mayores de 7 años, el 75 % en hembras y el 75 % en animales sin desparasitación interna en los 6 meses previos; no se encontraron asociaciones estadísticamente significativas (p > 0,05) entre la prevalencia y las variables edad (χ² = 0,73; 2 grados de libertad [GL]), sexo (χ² = 1,87; 1 GL) ni control parasitario (χ² = 0,62; 1 GL). Conclusiones: Giardia duodenalis se presentó con baja prevalencia en la población estudiada. Asimismo, se observó una mayor frecuencia de infección en perros mayores de 7 años, en hembras y aquellos sin desparasitación reciente; sin embargo, estas asociaciones no mostraron significancia estadística (p > 0,05).
Palabras clave: enfermedades parasitarias, Giardia duodenalis, perros, prevalencia, zoonosis (Fuente: AIMS)
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Derechos de autor 2026 Jaine Labrada Ching, Fredy Córdova
Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial 4.0.
