[Gnathostoma binucleatum (Spirurida: Gnathostomatidae) from the freshwater fish in Tabasco, Mexico].

Human gnathostomiasis is a food-born parasitic disease of relative importance in many countries in Southeast Asia. It is caused by several species of nematodes of the genus Gnathostoma. In Mexico is an emerging public health problem since 1970, when first cases were reported.

A new species of Vexillata (Nematoda: Ornithostrongylidae) in Attwater's pocket gopher from Texas.

Vexillata geomyos n. sp. is described as a parasite of Attwater's pocket gopher, Geomys attwateri (Geomyidae), from Welder Wildlife Refuge, Texas.

A new dicrocoeliid (Digenea: Dicrocoeliinae) parasite of rodents from Tlaxcala, Mexico.

Caballerolecythus ibunami n. gen., n.

New host records of the nematode Gnathostoma sp. in Mexico.

Gnathostomiasis is an emerging zoonosis in Mexico. However, for most endemic zones, the source of human infection has not been established. During 2000-2003, we investigated 2168 vertebrates (2047 fish, 31 amphibians, 4 reptiles, 19 birds and 67 mammals) from 39 localities distributed in nine states.

The first human case in Mexico of conjunctivitis caused by the avian parasite, Philophthalmus lacrimosus.

Species of Philophthalmus parasitize primarily the eyes of wild and domestic birds. A variety of mammals, including humans, occasionally serve as the intermediate as well as the definitive hosts for this parasite, although human cases are extremely rare. Here, we report a case of human conjunctivitis caused by an infection with Philophthalmus sp.