Journal ArticleDOI
Pattern of cercarial emergence of Schistosoma curassoni from Niger and comparison with three sympatric species of schistosomes.
TLDR
The emergence pattern of Schistosoma curassoni cercariae from Bulinus umbilicatus, whose adult worms parasitize bovine, caprine, and ovine ungulates in Niger, is of a circadian type with a mean emission time at 0855 hr 1 hr 6 min, characteristic of the schistosome species parasitizing domestic or wild cattle as mentioned in this paper.Abstract:
The emergence pattern of Schistosoma curassoni cercariae from Bulinus umbilicatus, whose adult worms parasitize bovine, caprine, and ovine ungulates in Niger, is of a circadian type with a mean emission time at 0855 hr 1 hr 6 min, characteristic of the schistosome species parasitizing domestic or wild cattle. The comparison of this cercarial emergence pattern with those of the other 3 sympatric species of schistosomes (Schistosoma haematobium, Schistosoma bovis, and Schistosoma mansoni) shows a significant difference between the chronobiology of the cercariae infective for human and those infective for bovine hosts. This difference may improve epidemiological surveys based on snail prevalences by allowing the distinction between bulinids infected with human and bovine parasites.read more
Citations
More filters
Journal ArticleDOI
Unavoidable Risks: Local Perspectives on Water Contact Behavior and Implications for Schistosomiasis Control in an Agricultural Region of Northern Senegal.
Andrea J. Lund,Mouhamadou Moustapha Sam,Alioune Badara Sy,Omar W. Sow,Sofia Ali,Susanne H. Sokolow,Sylvia Bereknyei Merrell,Janine S Bruce,Nicolas Jouanard,Simon Senghor,Gilles Riveau,David López-Carr,Giulio A. De Leo +12 more
TL;DR: These findings highlight the capacity of local populations to participate actively in schistosomiasis control programs and the limitations of widespread drug treatment campaigns, and provide opportunities to reduce exposure while maintaining resource-dependent livelihoods.
Journal ArticleDOI
Cercarial emergence of Ichthyocotylurus erraticus (Rudolphi, 1809), I. variegatus (Creplin, 1825) and Apatemon gracilis (Rudolphi, 1819) (Digenea: Strigeidae): contrasting responses to light:dark cycling.
TL;DR: The cercarial emission patterns of three strigeid species, Ichthyocotylurus erraticus, I. variegatus and Apatemon gracilis, from experimentally infected natural hosts were found to exhibit rhythms that correlated with the light:dark cycle.
Dissertation
Studies on the biosystematics and biology of strigeids (Digenea) parasitic in freshwater fish
TL;DR: The project aims were to establish the identity of the forms occurring in British fishes, by applying discriminatory techniques to the experimentally reared life-stages to clarify species membership to these taxa and indeed the taxonomic position of the subgenus Apatemon (Apatemon).
Journal ArticleDOI
Transmission potential of human schistosomes can be driven by resource competition among snail intermediate hosts
David J. Civitello,Teckla Angelo,Karena H. Nguyen,Rachel Hartman,Naima C. Starkloff,Moses P Mahalila,Jenitha Charles,A. Manrique,Bryan K. Delius,Leah Martine Bradley,Roger M. Nisbet,Safari Kinung’hi,Jason R. Rohr +12 more
TL;DR: How resource competition among snails profoundly alters the link between infected snails, the target of control, and schistosome cercariae, the cause of human infections is demonstrated.
Journal ArticleDOI
Schistosoma mansoni: assessment of effects of oleic acid, cercarial age and water temperature on parasite-host attraction.
TL;DR: Biochemical, age and environmental factors influencing cercarial host attraction and attachment behavior have been elucidated and will inform further development of devices for environmental surveillance and potentially improve cercariae exposure prevention strategies.
References
More filters
Journal ArticleDOI
Observations on natural and experimental interactions between Schistosoma bovis and S. curassoni from West Africa.
TL;DR: Viable hybrid parasites were produced in the laboratory and were maintained up until the F4 generation, Comparisons of egg morphology, surface structure of adult male worms and enzyme profiles have been made between experimental hybrid lines and field isolates.
Journal ArticleDOI
Genetic analysis of cercarial emergence rhythms of Schistosoma mansoni.
André Théron,Claude Combes +1 more
TL;DR: Experimental crossbreeding between schistosomes with an early and those with a late cercarial shedding pattern demonstrates that the cercaria emergence rhythms of schistOSomes are genetically determined.
Journal Article
The epidemiology of human and animal schistosomiasis in the Senegal River Basin.
TL;DR: A snail survey in various parts of the Senegal River Basin, including the SenegalRiver Basin, temporary rain-fed pools, swamps, irrigation canals and drains, ricefields and Lac de Guier was carried out, finding Bulinus guernei was the most common, occurring in permanent habitats, and Bulinus senegalensis occurring in laterite pools in the eastern part of the Middle Valley.
Journal ArticleDOI
On Schistosoma curassoni, S. haematobium and S. bovis from Senegal: development in Mesocricetus auratus, compatibility with species of Bulinus and their enzymes
TL;DR: A comparative study on the development of Senegalese isolates of Schistosoma curassoni, S. haematobium and S. bovis in hamsters is reported, together with the compatibility of these parasites with Bulinus spp.
Related Papers (5)
Genetic analysis of cercarial emergence rhythms of Schistosoma mansoni.
André Théron,Claude Combes +1 more