OBJECTIVES: To analyse the relationships between the frequency of ectopic localizations of Schistosoma haematobium and S. mansoni eggs. METHODS: Studies were conducted in 11 villages in north Cameroon, around Bessoum, a village where an epidemic of bloody diarrhoea caused by S. mansoni occurred in 1997. RESULTS: The results revealed infection prevalence rates of 70.5% for S. haematobium and 30.8% for S. mansoni. Interestingly, S. mansoni eggs were found in 14.5% of the urine samples and S. haematobium eggs in 3% of the stool samples. These ectopic eliminations of schistosome eggs resulted from sexual interactions between the two species of schistosomes, and from a spill-over of high infection loads. The clinical study showed that the morbidity was lower in individuals with mixed infections and high loads of S. haematobium than in those with S. mansoni infections only, suggesting a possible lowering effect of S. haematobium infection on S. mansoni morbidity. DISCUSSION: The results obtained in human populations are discussed in relation to the known schistosome interspecific interactions in animal models.
OBJECTIVES: To analyse the relationships between the frequency of ectopic localizations of Schistosoma haematobium and S. mansoni eggs. METHODS: Studies were conducted in 11 villages in north Cameroon, around Bessoum, a village where an epidemic of bloody diarrhoea caused by S. mansoni occurred in 1997. RESULTS: The results revealed infection prevalence rates of 70.5% for S. haematobium and 30.8% for S. mansoni. Interestingly, S. mansoni eggs were found in 14.5% of the urine samples and S. haematobium eggs in 3% of the stool samples. These ectopic eliminations of schistosome eggs resulted from sexual interactions between the two species of schistosomes, and from a spill-over of high infection loads. The clinical study showed that the morbidity was lower in individuals with mixed infections and high loads of S. haematobium than in those with S. mansoni infections only, suggesting a possible lowering effect of S. haematobiuminfection on S. mansoni morbidity. DISCUSSION: The results obtained in human populations are discussed in relation to the known schistosome interspecific interactions in animal models.
Authors: Verner N Orish; Emmanuel Komla Senanu Morhe; Wisdom Azanu; Robert K Alhassan; Margaret Gyapong Journal: Curr Res Parasitol Vector Borne Dis Date: 2022-05-27
Authors: Huldah C Sang; Pauline N M Mwinzi; Maurice R Odiere; Isaac Onkanga; Fredrick Rawago; Pavitra Pillay; Eyrun Floerecke Kjetland Journal: PLoS Negl Trop Dis Date: 2022-07-08
Authors: Sylvia Afriyie Squire; Rongchang Yang; Ian Robertson; Irene Ayi; Daniel Sai Squire; Una Ryan Journal: Parasitol Res Date: 2018-07-21 Impact factor: 2.289
Authors: Artemis Koukounari; Christl A Donnelly; Moussa Sacko; Adama D Keita; Aly Landouré; Robert Dembelé; Elisa Bosqué-Oliva; Albis F Gabrielli; Anouk Gouvras; Mamadou Traoré; Alan Fenwick; Joanne P Webster Journal: BMC Infect Dis Date: 2010-07-29 Impact factor: 3.090
Authors: Jean Claude Dejon-Agobé; Yabo Josiane Honkpehedji; Jeannot Fréjus Zinsou; Jean Ronald Edoa; Bayodé Roméo Adégbitè; Ance Mangaboula; Selidji Todagbe Agnandji; Ghyslain Mombo-Ngoma; Michael Ramharter; Peter Gottfried Kremsner; Bertrand Lell; Martin Peter Grobusch; Ayôla Akim Adegnika Journal: Am J Trop Med Hyg Date: 2020-05-14 Impact factor: 2.345