VPH-0107
QUESTION
The following organism has been internationally accepted as the most suitable bacterial indicators for detecting recent sewage pollution of water?
OPTIONS
(A) Enterococcus faecalis
(B) Clostridium perfringens
(C) E. coli
(D) All of the above
ANSWER
(C) E. coli
EXPLANATION
Escherichia coli is the most widely accepted indicator of recent fecal or sewage contamination of water because it is abundant in feces and usually short-lived outside the host. Enterococcus and Clostridium may also be indicators, but they are not the principal answer intended.
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Veterinary Public Health and Epidemiology · 121 Questions
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