Background: Snails species belonging to the genus Bulinus (Planorbidae) serve as intermediate host for flukes belonging to the genus Schistosoma (Digenea, Platyhelminthes). Self-fertilization can occur. Introgression in Lake Malaŵi: increasing the threat of human urogenital schistosomiasis? Snails of the genus Bulinus (Müller, 1781) serve as intermediate hosts for larval development of the parasite species belonging to the Schistosoma haematobium species group in Africa, the Eastern Mediterranean and Madagascar , as for other Trematode species like paramphistomes.The S. haematobium blood flukes are responsible for 112 million infections in Africa … Zein-Eddine R, Djuikwo-Teukeng FF, Al-Jawhari M, Senghor B, Huyse T, Dreyfuss G. BMC Evol Biol. The parasite is transmitted by snails of the genus Bulinus, which also transmit other closely related human and animal schistosomes. The results showed that the cercarial-incubation periods of these two schistosome species varied with the environmental water temperature. Interactions between intermediate snail hosts of the genus Bulinus and schistosomes of the Schistosoma haematobium group. Find NCBI SARS-CoV-2 literature, sequence, and clinical content: https://www.ncbi.nlm.nih.gov/sars-cov-2/. Department of Zoology, Parasitology Research Unit, University of Ibadan, Ibadan, Nigeria . Background . Temperature influences the physiology, ecology, susceptibility of snails to infection and parasite pathogenicity [ 4 – 7 ]. Schistosomiasis is a parasitic disease historically known as bilharzia caused by the trematode of the genus Schistosoma. The three main species infecting humans are Schistosoma haematobium, S. japonicum, and S. mansoni. doi: 10.1017/s0031182001008046. USA.gov. The affinities of the remaining species are still being clarified. S. intercalatum (Fisher, 1935) also infects man but is not as pathogenic to man as the other two schistosomes. Name Language; urinary schistosomiasis in Man: English: Darmpärchenegel : German: Propose photo. However, freshwater snails of the species Bulinus contortus, B. truncatus, and Planorbarius metidjensis, which are recognized intermediate hosts for Schistosoma haematobium trematodes, have been found in Portugal , Spain , and Corsica (5,6). Bulinus species Schistosoma haematobium Phylogeny Genetic diversity Host-parasite interactions Electronic supplementary material The online version of this article (doi: 10.1186/s12862-014-0271-3 ) contains supplementary material, which is available to authorized users. To enable population genetic analysis within B. obtusispira, microsatellite markers were developed using an enrichment method and 8 primer pairs are reported. Schistosoma haematobium, in Lake Mala ... Other Bulinus species also found in Lake Malaŵi are B. globosus, B. forskalii and B. succinoides; the first two being found only in shallow water along protected shorelines, while B. succinoides occurs in . The three main species infecting humans are Schistosoma haematobium, S. japonicum, and S. mansoni. Only B. globosus populations were found to be naturally infected with Schistosoma haematobium. Bulinus truncatus 32; snails 27; Schistosoma haematobium 15; intermediate hosts 15; schistosomiasis 12; more Subject » Search 32 Search Results « Previous | 1 - 20 of 32 | Next » Select all Unselect all Sort by relevance relevance; newest; oldest; title; Number of results to display per page. 1996 Mar;61(1):19-29. doi: 10.1016/0001-706x(95)00137-4. Schistosomiasis (Bilharzia) is caused by trematode flatworms of the genus Schistosoma. intermediate hosts along the Niger River Valley . HHS Over twenty species are recognised within this genus. The most common snail intermediate host for S. japonicum is Oncomelania hupensis, which is found in China, the Philippines, Indonesia, and also Japan [ 12 It is found in Africa and the Middle East. Of the four species of Bulinus found on Madagascar, three species: B. obtusispira, B. liratus and B. bavayi are endemic while the fourth, B. forskalii, is probably a recent introduction from the African mainland. The observed levels of nucleotide divergence within Bulinus were substantial but may underestimate the true levels as there was evidence of 'saturation' of transitional substitutions at both loci. Infect Dis Poverty. 1955 Jan; 58 (1):1–11. Schistosoma haematobium findet sich vor allem in Afrika und im Nahen Osten, zum Teil aber auch auf der arabischen Halbinsel und in einigen Gebieten Indiens.In den letzten Jahren haben sich allerdings auch mehrere Südkorsika-Reisende mit Schistosoma haematobium infiziert.. Bulletin of the World health Organization 55, 715 – 730. However, freshwater snails of the species Bulinus contortus, B. truncatus, and Planorbarius metidjensis, which are recognized intermediate hosts for Schistosoma haematobium trematodes, have been found in Portugal , Spain , and Corsica (5,6). Schistosoma haematobium uses snails of the genus Bulinus (Figure 3) as intermediate hosts (Brown, 1994). Der in Afrika sowie im Nahen und Mittleren Osten vorkommende Erreger kann besonders in Afrika die für zahlreiche Todesfälle verantwortliche Infektionskrankheit Schistosomiasis hervorrufen. Dort bilden mehrere Eier ein Miracidium, das eine Bulinus-Schnecke als Zwischenwirt befällt, wo das Epithel abgestreift wird und eine Sporozyste entsteht. Schistosoma haematobium (urinary blood fluke) is a species of digenetic trematode, belonging to a group (genus) of blood flukes (Schistosoma). Jones CS, Rollinson D, Mimpfoundi R, Ouma J, Kariuki HC, Noble LR. The evolutionary relationships of these species with Bulinus species from Africa were studied by phylogenetic analysis of DNA sequence variation at two mitochondrial loci: cytochrome oxidase subunit I (COI) and large ribosomal subunit (LSU) or 16S. NLM Estimates place the affected worldwide population for all forms of schistosomiasis at 230 million, with an estimated 700 million at risk. Zur Behandlung kommt Praziquantel in Frage. The most important intermediate host of S. haematobium in West Africa is Bulinus truncatus, which is widely distributed in rivers, irrigated areas and ponds. Different stages of the disease cycle are affected by temperature [ 3 ]. Monthly sampling of snails was also conducted. 2006). Of note, invading schistosomes were indifferent to the levels of palmitic acid in snail soft tissue and hemolymph, while decrease in PUFAS levels strongly support theit function as endogenous antimicrobial molecules [ 59 ].
2020 bulinus species schistosoma haematobium