A populational study of the compatibility between Schistosoma haematobium and its potential vectors has been carried out in the Niger, confronting samples of S. haematobium populations from three epidemiologic foci with Bulinus populations originating from the same focus (sympatric infection) and with Bulinus populations from other foci (allopatric infections). The three transmission foci selec...

Intermediate hosts of Schistosoma haematobium, the causative agent of urinary schistosomiasis, in Lake Malaŵi include: Bulinus globosus, a member of the B. africanus group and B. nyassanus, a diploid member of the B. truncatus/tropicus species complex. We compared genetic variability between isolates of S. haematobium from the southern part of the lake (Cape Maclear), where both B. globosus and...

Gastrodiscosis outbreaks due to Gastrodiscus aegyptiacus were recorded in horses in the vicinity of Harare, Zimbabwe, in the absence of Bulinus forskalii, B. senegalensis and Cleopatra sp. which are considered to be the only intermediate host snails. This suggested the possibility of other snail species acting as intermediate hosts in the life cycle of the trematode. A study was carried out to ...

Identification of populations of Bulinus nasutus and B. globosus from East Africa is unreliable using characters of the shell. In this paper, a molecular method of identification is presented for each species based on DNA sequence variation within the mitochondrial cytochrome oxidase subunit I (COI) as detected by a novel multiplexed SNaPshotTM assay. In total, snails from 7 localities from coa...

In the town of Bakel, the French scientist Le Dantec encountered 20 patients showing symptoms of “vesical Schistosomiasis” in 1908. This represents the first record of schistosomiasis cases in Senegal [1]. In line with the country’s great diversity in aquatic habitat within Senegal, at least five species of snails are known to act as intermediate hosts for human infective schistosomes: Bulinus ...

background: in view of the massive rural-to-urban migration in nigeria, investigations on transmission of urinary schistosomiasis were carried out in ur-ban and semi-urban communities in nike lake area of enugu state, nigeria. methods : urine samples of school children were tested for micro-haematuria using reagent strips followed by microscopic examination for schistosoma haematobium eggs. wat...

Schistosomiasis remains a major public health problem with estimated 240 million cases worldwide whereby more than 90% of these occur in Sub-Saharan Africa. Tanzania is ranked second after Nigeria in terms of disease burden with prevalence of infection as higher as 100% in some communities. We conducted a cross-sectional malacological survey to examine for abundance, identity and disease transm...

The present investigation of shallow-water gastropod Bulinus globosus is reported on nearshore sites in and around Cape Maclear on the northwestern part of the Nankumba Peninsula, Lake Malawi (part of Lake Malawi National Park) at a depth of 10 M. The present remark focuses on the geographical distribution and habitats of this group and sample have observed in Cape Maclear Island, Republic of M...

Disease distribution is correlated to the of freshwater snails which in turn influenced by physicochemical status habitats. This study aimed evaluate snail species diversity, abundance, and KwaZulu-Natal (KZN) province, South Africa, between December 2020 February 2021. A total 4576 consisting 8 were collected from 127 sites 11 districts. Tarebia granifera most abundant (n = 2201), while bivalv...

The genetic population structures of the freshwater snail Bulinus globosus and its trematode parasite Schistosoma haematobium from 8 river sites in the Zimbabwean highveld were compared using randomly amplified DNA (RAPD) markers. There was significant variability between snail populations collected at different sites, but schistosome populations only showed differentiation at a wider geographi...