[Hydatid disease in children of Buenos Aires Province].

Hydatidosis is a parasitic zoonosis caused by Echinococcus granulosus. It is endemic in Argentina and in the province of Buenos Aires, especially to the south of the Rio Salado basin. During 2014 and 2016, the Department of Rural Zoonoses was notified of 479 cases of hydatidosis, with 12.1% confirmed in children under 18 years of age. Fifty-nine percent corresponded to males and the group of 13 to 17 years was the most prevalent one (47%). Sixty-four percent had liver involvement, 22% pulmonary involvement, 5% hepatopulmonary involvement, 5% splenic involvement and 4% cerebral involvement. Thirtythree percent of the cases were asymptomatic. Sixty percent resided in urban areas and of these 20% did not present an epidemiological link. This is a disease of mandatory reporting and there are provincial and national programs that contemplate free actions tending to control it, but despite this, it continues to be a difficult problem to solve.