[Experimental infection of an adult domestic cat with third stage larvae of Gnathostoma spinigerum isolated from a fresh water fish]. / Infección experimental de un gato doméstico adulto con el tercer estado larvario de Gnathostoma spinigerum procedente de un pez de agua dulce.

In order to confirm that the third larvae stage found in fresh water fish and that the adult parasite found in definitive hosts, corresponded to different stages of the same parasite life cycle (G. spinigerum), we proceeded to the experimental infestation with the following finding of the adult parasite. We were able to confirm in a definitive way the identify of the larva found in fresh water fish.

[Natural infection of fresh water fishes with third stage larvae of Gnathostoma spinigerum and its dynamics of transmission to man. First report in Ecuador and America]. / Infección natural de peces de agua dulce con el tercer estado larvario de Gnathostoma spinigerum y su dinámica de transmisión al hombre. Primer reporte en Ecuador y América.

We are presenting here an investigative study done in our country in order to demonstrate the G. spinigerum the way it is transmitted is nature; its ecosystem and the identification of the different varieties of fish that are intermediate hosts, infected with larvae. The internal and external morphology of the parasite's third larvae stage is also described.