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On the Patterns of the Occurrence of diarrheas in the Southern Benin

Journal of Environmental Protection 2013年第4期4卷 353-360页

作者： Herve Thierry Azonhe R.Glele Kakai Atidegla Capo Seraphin Kossi Euloge Agbossou Department of Geography and Regional Development Benin Scientific and Technical Research Center(CBRST)CotonouBenin Faculty of Agronomic Sciences University of Abomey-CalaviCotonouBenin

The present study focused on the analysis of the risk factors of diarrhea in Southern Benin. Data have been collected from 442 peasant households on the basis of a stratified random sampling method in the targeted communities, with information on the source of water provision, the location of the village, the usual defecation place, the site of refusing dumping and the presence of trash dump in the vicinity of the household. Data have been analyzed using descriptive statistics. In addition, analyses of variance and log-linear analyses have been applied to test the various factors in the outbreak of diarrheas. Results have allowed a hierarchical organization of the drinking water sources with regards to their use and to the cases of diarrheas (boreholes: p 0.001;rainwater and territorial water: p 0.001;wells: p = 0.547 and pipe-borne water: p = 0.277. If we rule out people’s insanitary behaviors, the impact of some risk factors such as the sites of waste disposal (2%) and excreta disposal (1%) is of little influence in comparison to the water supply source and the place of residence, which play respectively for 62% and 30% in the outbreak of episodes of diarrheas in households. It follows that, to curb the diarrhea morbidity, there is the need to improve the water supply policy and the environmental sanitation.

关键词： diarrheas Insanitation Environment Health Benin

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Low Prevalence of Campylobacteriosis in the Northern Region of India

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Advances in Microbiology 2015年第3期5卷 155-165页

作者： Chetana Vaishnavi Meenakshi Singh Jarnail Singh Thakur Babu Ram Thapa Department of Gastroenterology Postgraduate Institute of Medical Education and Research Chandigarh India Department of Community Medicine (School of Public Health) Postgraduate Institute of Medical Education and Research Chandigarh India

Campylobacter is one of the most common bacterial enteropathogens of food borne origin in industrialized countries with C. jejuni being the most common species followed by C. coli. The prevalence of Campylobacters in and around Chandigarh, India was studied by phenotypic and genotypic methods. Fecal samples from 1145 diarrheal patients and 102 healthy subjects from hospital and community were cultured on Campylobacter media and identified by Gram stain, biochemical investigations and serotyping. Molecular identification of Campylobacter isolates was done using specific primers to unique regions of 16S rRNA, Campylobacter jejuni (hipO), Campylobacter coli (aspK), Campylobacter lari (glyA) and Campylobacter upsaliensis (lpxA) genes. Identification of specific genes to look for resistance to nalidixic acid, ciprofloxacin, tetracyclin and streptomycin was also done. Campylobacters were isolated from 2.6% of patients with diarrhea. Campylobacteriosis was more prevalent in children ≤5 years old and during summer season. The most frequent serotypes were S:27, B:2, Z5:52 and V:32. All the Campylobacters isolated by culture were confirmed genotypically by identification of 16S rRNA, hipO and aspK genes. Of the 30 isolates, 27 were C. jejuni and 3 were C. coli. No C. lari or C. upsaliensis were detected. Antibiotic resistance was 40% for nalidixic acid, 23.3% for ciprofloxacin, 50% for tetracyclin and 20% for streptomycin. Campylobacter prevalence is low in the region with C. jejuni being the most common species. A high degree of resistance was found for nalidixic acid and tetracyclin but moderate for ciprofloxacin and streptomycin.

关键词： Antibiotic Resistance Campylobacter diarrheas Molecular Investigation Phenotypes Serotyping

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