نتایج جستجو برای: geohelminth
تعداد نتایج: 119 فیلتر نتایج به سال:
Co-infections are the norm in nature, yet rare in the laboratory. Fortunately, the latter pattern is beginning to change, and laboratory studies comparing coand mono-infections have shown that many aspects of both parasite and host biology differ between these two settings. But, whether and how the interactions revealed in the laboratory affect natural populations is still unclear. The papers i...
OBJECTIVE In the city of Salvador, a large urban centre in Northeast Brazil, a city-wide sanitation intervention started in 1997, aimed at improving the sewerage coverage of households from 26% to 80%. Our aim was to study the impact of the intervention on the prevalence and incidence of geohelminths in the school-aged population. METHODS THE STUDY COMPRISED TWO COMPARABLE COHORTS: the first ...
Helminthiasis and protozoans infections have been recognized as an important public health problem. The aim of the present study was to screen soil samples collected from 10 primary schools in the city of Dschang for the presence of soil-transmitted helminth eggs, cysts, and oocysts of protozoans. A total of 400 soil samples were collected around latrines, at playgrounds, and behind classrooms ...
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