[Muscoid dipterans as helminth eggs mechanical vectors at the zoological garden, Brazil].

Objective: To assess muscoid dipterae species who are able to carry helminth eggs and larvae and to evaluate the potential contamination of trapped dipterae.

Methods: The study was conducted in two different sites of the Zoological Garden of Rio de Janeiro from May 1996 to April 1998. Flies were captured weekly using traps containing putrefied fish, left out in the open for an hour at two sites in the zoo: Site 1 was next to the garbage and Site 2 was near the hippopotamus and birds of prey cages.