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Bacteriological Analysis of Well Water Sources in the Bambui Student Residential Area

Journal of Water Resource and Protection 2013年第11期5卷 1013-1017页

作者： niba rawlings ngwa Nchang Chrysanthus Department of Medical and Biomedical Science National Polytechnic Bambui Bamenda Cameroon

Majority of the population in the Bambui student residential area depend on wells as their source of water supply. Due to increasing complaints from students after using this well water sources, this study was carried out to examine the microbial quality of well water sources in the Bambui student residential area, Bamenda, Cameroon as a way of safe guarding public health against water borne diseases. Water samples from a total of fifteen wells, covered and uncovered were assessed for their bacteriological quality using the multiple tube fermentation technique to determine the coliform count using the most probable number method. Positive tubes of the presumptive test were further cultured on appropriate solid media. The organisms isolated were further characterized using standard procedures. The result of the study revealed that most of the wells were grossly contaminated with bacteria pathogens such as Klebsiella species (95%), Escherichia coli (52%) and Salmonella typhi (32.5%). Comparatively, the uncovered wells were more contaminated with bacteria pathogens than the covered well. All the water samples except three exceeded the standard limit of the most probable number (MPN) per 100 ml set for untreated drinking water by the World Health Organization. This result highlight the fact that most well water sources in the Bambui student residential area metropolis are not safe microbiologically for drinking without additional treatment such as boiling or disinfection and this could lead to outbreak of water borne diseases. Good and proper environmental and personal hygiene must be maintained especially by the users of these wells to prevent their contamination with bacterial pathogens. Wells should also be properly constructed.

关键词： Well Water Bacteriological Analysis Bacterial Pathogens Water Borne Disease

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Assessment of serum calcium in relation to dietary calcium intake in a rural population in Cameroon

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Open Journal of Epidemiology 2013年第4期3卷 209-212页

作者： niba rawlings ngwa Akwa Emmanuela Ambe HAMANI Foundation Training School of Health Santa Cameroon

The serum calcium levels of patients were assessed as they attended a district hospital in a rural population for a period of one month. A majority of the patients were between the age group of 38-77 years. 55 cases were studied. The ratio of males to females was 3:8. The results show an increase in abnormal serum calcium level with age. The abnormality in serum calcium was higher in females than in males. The demonstration of poor nutritional intake and lack of other calcium supplements was a predisposing factor to the abnormal calcium levels. It was concluded that the abnormal levels of calcium were as a result of lack of calcium diet.

关键词： Calcium Dietary Intake Ratio Electrolyte Osteoporosis

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