Intermediate hosts of schistosoma mansoni in Brazil

Schistosoma mansoni infections in the first three months of life of sympatric intermediate hosts from Brazil.

Intermediate and definitive hosts of Schistosoma mansoni in Corrientes province, Argentina.

Corrientes province is located in the humid subtropical region of Argentina northeast on the left riverbank of Paraná River in the border with the South of Brazil. This is a region without schistosomiasis but planorbid and rodents that would serve as host of the life cycle of Schistosoma mansoni inhabit here. The objective of this work is to know the role of rodent as definitive host of schisto...

Mating Behaviour in Two Schistosoma Mansoni Intermediate Hosts (Biomphalaria Pfeifferi and Biomphalaria Camerunensis) in Cameroon

Biomphalaria pfeifferi and B. camerunensis are Schistosoma mansoni intermediate hosts. The knowledge of their mating system and mating behaviour is of high interest in mastering the transmission and evolution of a potential resistant gene introduced in a population. This study was therefore conducted to provide further knowledge on the mating behaviour of these two S. mansoni intermediate hosts...

Genetic variability and identification of the intermediate snail hosts of Schistosoma mansoni.

Studies based on shell or reproductive organ morphology and genetic considerations suggest extensive intraspecific variation in Biomphalaria snails. The high variability at the morphological and genetic levels, as well as the small size of some specimens and similarities between species complicate the correct identification of these snails. Here we review our work using methods based on polymer...

A Multiplex-PCR approach to identification of the Brazilian intermediate hosts of Schistosoma mansoni.

Due to difficulties concerning morphological identification of planorbid snails of the genus Biomphalaria, and given a high variation of characters and in the organs with muscular tissue, we designed specific polymerase chain reaction (PCR) primers for Brazilian snail hosts of Schistosoma mansoni from available sequences of internal transcribed spacer 2 (ITS2) of the ribosomal RNA gene. From th...