[Soil contamination in Ciudad de La Habana province with Toxocara canis eggs].

Toxocara canis is a commun ascarid of dogs worldwide. The ingestion of helminths eggs by humans may cause visceral larva. Knowing the prevalence of T. canis in domestic dogs from Havana City (17.9%), it was decided to study for the first time the contamination of soil in the city with canine nematode ova, and thus, understand the magnitude of the rich for our population, thus, mainly children, for developing the disease three soil samples were taken in different residential areas from 15 municipalities of Havana City, and they were processed by Willis flotation technique (1921). Nineteen out of 45 samples were positive to T. canis eggs accounting for 42.2% of prevalence. Only 3 municipalities were found to have negative results. 38.2% of egg were embryonate. Findings are discussed.