[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.

Study of the ethiological agent of gnathostomosis in Nayarit, Mexico.

In order to clarify the specific identity of the etiological agent of human gnathostomosis in Nayarit State, Mexico, morphological and molecular studies were conducted on advanced third stage larvae obtained from human and fish tissue. Cathorops fuerthii from Agua Brava lagoons complex, was the only fish species found to be infected among four species surveyed. Morphological variability does not allow specific identification of the larvae.

Short report: gnathostomiasis in Mexico.

Gnathostomiasis is an important food-borne parasitic zoonosis that is endemic mainly in Asian countries where some people prefer to eat raw freshwater fish. In North America, the first recorded case of gnathostomiasis was in Mexico in 1970, and the numbers of gnathostomiasis patients in Mexico seems to be increasing dramatically with time. However, the epidemiology of this disease in Mexico has never been described in detail.

Campechetrema herrerai n. gen., n. sp. (Trematoda: Cryptogonimidae) from the intestine of Petenia splendida (Pisces: Cichlidae) from Campeche, Mexico.

Campechetrema herrerai n. gen, n. sp.

Aroapyrgus alleei Morrison, 1946 (Gastropoda: Hydrobiidae) first intermediate host of paragonimus mexicanus in Colima, Mexico.

The lung fluke Paragonimus mexicanus infects opossums in the state of Colima, on the Pacific coast of Mexico. Some of the hydrobiid snails occurring in the same area, and identified as Aroapyrgus alleei Morrison, 1946, were found naturally infected with rediae and cercariae of P. mexicanus.