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Appl Environ Microbiol. 1974 March; 27(3): 484-487
Copyright © 1974 American Society for Microbiology. All Rights Reserved.

Rapid Determination of the Presence of Enteric Bacteria in Water

¹ Atlantic Research Corporation, Alexandria, Virginia 22314

ABSTRACT

A rapid and sensitive method is described for the detection of bacteria in water and various other natural substrates by the isolation of specific bacteriophage. By the addition of large numbers of the organism in question to the sample, the presence of virulent bacteriophage can be demonstrated in as little as 6 to 8 h. Fecal coliform, total coliform, and total coliphage counts were determined for over 150 water samples from several geographical areas over a period of 2 years. Computer analysis of the data shows a high degree of correlation between fecal coliforms and the coliphage present in the samples. With a high correlation coefficient between fecal coliform and coliphage counts, predictions of the fecal coliforms may be made by enumeration of the phage.