| ssu rdna characterization of lymnaeid snails transmitting human fascioliasis in south and central america. | the small subunit (18s) rrna gene sequences of the lymnaeid morphs i and ii (mollusca: gastropoda: basommatophora: lymnaeidae) transmitting human fascioliasis in the high endemic zone of the northern bolivian altiplano and of lymnaea cubensis from mexico and guadeloupe island (caribbean) have been obtained by direct polymerase chain reaction pcr cycle sequencing and silver staining methods and compared to that of the 6 most common european lymnaeidae species. results allow us to establish defini ... | 1997 | 9406784 |