Abstract
There is need for alternate quick-search of pathogensâ distribution in community water sources, instead of the cumbersome âEscherichia coli detection.â Parasites were evaluated as possible indicators of faecal contamination of surface waters, using Adada River in Nigeria as case-study. Seventeen parasites of medical importance (in dry season) and 13 (rainy season) isolated from the river (at measured geographical coordinates) were analyzed for their quality and quantity and connected with the distribution of the riverâs isolated Escherichia coli, using Pearsonâs Correlation Analysis. The 17 parasites consist of: Taenia sp, E. coli, E. histolytica, B coli, Cercaria/miracidia, S mansoni, S haematobium, A. lumbricoides, Giardia sp, hookworm, T. trichiura, S. stercoralis, I. butschlii, C. mesnili, E. nana, B. hominis and H. diminuta; while the 13 consist of: Taenia sp,. E. coli, E. histolytica, B. coli, S. mansoni, A. lumbricoides, Giardia sp, hookworm, T. trichiura, S. stercoralis, I. butschlii, C. mesnili and E. vermicularis. Biological index, using the Pearsonâs Correlation Analysis, revealed significant correlation relationship of Escherichia coli with the presence of I butschlii in the dry season), non in rainy season. From the evaluation, potential index analysis indicated that I. butschlii could serve as markers for Escherichia coli faecal bacteria indicator, and possible index for future monitoring of the potability of such surface waters. The methodology is straight forward, cost effective, less cumbersome than other currently existing approaches.
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