| [lymnic snails from the microregion of belo horizonte, minas gerais, brazil with an emphasis on parasite disease vectors]. | a malacological survey to detect foci of transmission of schistosomiasis and other parasitic diseases was undertaken into water-courses from 13 municipalities of microregion of belo horizonte, mg, brazil. from 1990 to 1996, 22,066 snails were collected. from those, 378 (1.7%) were found infected by trematodes: biomphalaria glabrata (7,920), infected by schistosoma mansoni (1.9%), echinostomatidae (1.2%), strigeidae (0.6%), cercaria minense (0.1%) and derogenidae (-0.1%); b. straminea (4,093) inf ... | 1998 | 9789443 |
| aspects of the maintenance of the life cycle of fasciola hepatica in lymnaea columella in minas gerais, brazil. | fascioliasis is a parasitic disease of domestic ruminants that occurs worldwide. the lymnaeid intermediate hosts of fasciola hepatica include lymnaea columella, which is widely distributed in brazil. a colony of l. columella from belo horizonte, mg, was reared in our laboratory to be used in studies of the f. hepatica life cycle, the intermediate host-parasite relationship and development of an anti-helminthic vaccine. in the first experiment 1,180 snails were exposed to miracidia of f. hepatica ... | 2002 | 12048573 |
| population dynamics of lymnaea columella and its natural infection by fasciola hepatica in the state of minas gerais, brazil. | studies on the population dynamics and natural infection of lymnaea columella by fasciola hepatica were carried out from september 1999 to december 2000 in a low-lying area near itajubá in the brazilian state of minas gerais. a total of 626 snails were collected monthly at nine different sites, counted, and dissected to search for larvae of f. hepatica. the highest populations of l. columella were reached in october of 1999 and august of 2000, and the highest natural infection rates of snails by ... | 2003 | 12590657 |
| occurrence of fasciola hepatica (linnaeus, 1758) infection in brazilian cattle of minas gerais, brazil. | fasciolosis is a parasitic disease which is caused by digenetic trematodes, such as fasciola hepatica, and which occurs worldwide. the disease causes significant economic losses in cattle because of the reduction in milk and meat production and because the parasitized livers have no economic value. also, abortion and mortality rates increase. to determine the occurrence and dispersal of f. hepatica in the state of minas gerais, fecal samples were collected from bovines aged 12 months and older b ... | 2009 | 19602313 |