Factors associated with the seizure of livers positive to Fasciola sp. in an endemic area of southeastern Mexico

This study aimed to determine the frequency for the seizure of livers with damages attributed to the presence of Fasciola sp. and associated risk factors. It was conducted a prospective observational study with daily visits, for 12 months, to a municipal slaughterhouse in the Sierra area in the state of Tabasco. Of the seized livers, 25.8 % tested positive for the parasite presence; seizure was the same in male and female animals (X-2 = 0.011, gl = 1, P<0.05). The highest proportion of seized livers was observed during the rainy season (9.36 %). This study concludes that the prevalence of fascioliasis in the Jalapa area has not decreased in recent years and is related to animal origin. Fascioliasis is a disease that must be monitored to detect the factors that allow it to remain in a geographic region, in order to establish and propose strategic control and preventive measures adapted to the particular conditions of endemic areas.