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Appl Environ Microbiol. 1970 August; 20(2): 187-191
Copyright © 1970 American Society for Microbiology. All Rights Reserved.

Distribution of Coliphages in Hong Kong Sewage

Department of Botany, University of Hong Kong, Hong Kong

ABSTRACT

Coliphage content of sewage collected from 11 different localities in Hong Kong was determined. The number of plaque-forming units (PFU) ranged from 0.036 x 10³ to 15.9 x 10³ per ml. In general, urban sewage tended to be richer than rural sewage both in PFU count as well as plaque morphological variation. Seventy-seven isolates were subjected to a host range study. Fifty per cent of these were able to grow on Escherichia coli K-12 as well as E. coli B. Approximately 32% were found to be male specific, and the remaining 18% were K-12 specific although sex-indifferent.