| dynamics of antigenemia and coproantigens during a human fasciola hepatica outbreak. | in the present study the dynamics of antigenemia and coproantigens were studied in patients with fasciola hepatica infection during an outbreak occurring in la palma, pinar del río, in the west province of cuba. stool and serum samples were collected from 67 patients and 40 healthy subjects. stool samples were studied by a simple gravity sedimentation technique and an es78 sandwich enzyme-linked immunosorbent assay (elisa) for observation of eggs and detection of parasite coproantigens, respecti ... | 1998 | 9705421 |
| population dynamics of intermediate snail hosts of fasciola hepatica and some environmental factors in san juan y martinez municipality, cuba. | the variation of abundances of intermediate snail hosts of fasciola hepatica in cuba (fossaria cubensis and pseudosuccinea columella) was studied during one year under natural conditions at five sampling sites in san juan y martinez municipality, pinar del rio province, cuba. the effect of some environmental variables on the lymnaeid abundances was also studied. a canonical correspondence analysis showed that both species do not generally occur together in the same habitat and that most factors ... | 2004 | 15273796 |
| detection and genetic distance of resistant populations of pseudosuccinea columella (mollusca: lymnaeidae) to fasciola hepatica (trematoda: digenea) using rapd markers. | twelve natural populations of pseudosuccinea columella snails, sampled in the western and central regions of cuba, were analyzed using the rapd-pcr technique to screen for resistance to fasciola hepatica. ten opa primers previously shown to produce marker bands for resistance and susceptibility were tested. a new population of p. columella (el azufre, pinar del río) exhibited the amplification patterns of resistant snails, and its resistant status was confirmed after experimental exposure to mir ... | 2004 | 15301979 |
| first report of larval stages of fasciola hepatica in a wild population of pseudosuccinea columella from cuba and the caribbean. | a wild population of the lymnaeid snail pseudosuccinea columella infected by larval stages of fasciola hepatica was discovered in the pinar del río province, cuba. one of 100 snails was infected in a rice culture field. this is the first time this species has been found acting as intermediate host of f. hepatica under natural conditions, not only for cuba but also for the caribbean area. | 2011 | 20637143 |
| variation of snail's abundance in two water bodies harboring strains of pseudosuccinea columella resistant and susceptible to fasciola hepatica miracidial infection, in pinar del río province, cuba. | the abundance of freshwater snails in two rural sites of pinar del río, cuba, which harbor pseudosuccinea columella susceptible and resistant to miracidia of fasciola hepatica was followed for one year. susceptible snails were found in the most anthropic site (ipa) whereas the resistant population inhabited the most preserved one (el azufre). only two snail species coexisted with p. columella at ipa site (physa cubensis and tarebia granifera) while five species were found at el azufre, including ... | 2006 | 16410958 |