Patricia C Cheung, Padra A Franks, Michael R Kramer, Christi M Kay, Carolyn D Drews-Botsch, Jean A Welsh, Julie A Gazmararian
Elementary school physical activity opportunities and physical fitness of students: A statewide cross-sectional study of schools
PloS one
schistosoma mansoni causing intestinal schistosomiasis widely distributed ethiopia new transmission foci continually reported report new transmission sites prevalence smansoni infection among school children yachi areas southwestern ethiopia crosssectional survey conducted among school children yachi yisa yachi efo elementary schools southwestern ethiopia april 2017 june 2017 three hundred seventeen school children aged six 15 years randomly selected provide stool specimens helminth infection examination katokatz formolether concentration techniques snail survey carried assess schistosome infection biomphalaria pfeifferi laboratory bred mice also exposed schistosome cercariae shed b pfeifferi en masse definite identification schistosoma species 317 stool specimens examined using double katokatz thick smear single formolether concentration techniques 224 707 found positive least one intestinal helminth species prevalent parasite mansoni 429 followed trichuris trichiura 341 ascaris lumbricoides 142 prevalence mansoni infection significantly higher among children attending yachi yisa school 494 yachi efo school 356 p 0002 study also revealed significantly higher prevalence smansoni infection among males 512 females 331 p 0001 however prevalence smansoni infection significantly associated age categories p 0839 b pfeifferi snails infected schistosomes collected water bodies found study area six weeks post exposure adult mansoni worms harvested mesenteric veins laboratory bred mice study revealed establishment new mansoni transmission foci moderate prevalence schistosomiasis yachi areas hence treatment schoolage children every two years recommended snail control nonspecific control approaches including provision clean water supply health education also complement mass drug administration praziquantel