Keywords
water from natural springs
bacteriologic analysis
How to Cite
Abstract
Studies that are accomplished to check the occurrence, epidemiology and risk factors to outbreaks of intestine diseases of hydric transmission such as the bacterial and viral gastroenteritis have made it possible to use strategies and control of these infections. However, the outbreaks caused by parasitic agents still need more attentions. The lack of standard methodology to detect them in different foods and water makes it difficult to clarify and, as a consequence, to subnotify the cases that have occurred. This study aimed to demonstrate the presence of bacterial and parasitic agents in seven water from natural springs of public utility located in Sorocaba and Votorantim cities – São Paulo state, analyzing environmental factors and source maintenance conditions. For the parasitological research were used different techniques of concentration: sediment was observed by optical microscopy; smears were prepared and stained by auramina and Kinyoun and were examined with oil immersion objective. The bacteriological methods were used the “Standart Methods for the examination of water and wastewater” and “Compendium of methods for the microbiological examination of foods”. The bacteriologic results showed the contamination of total coliforms in all samples, the presence of fecal coliforms was in 6 samples. The parasitologic results showed presence...
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