Which bacteria is commonly associated with sewage?

E. coli is commonly associated with sewage due to its prevalence in the intestines of humans and warm-blooded animals. This bacterium is often found in fecal matter, making it a key indicator of fecal contamination in water sources. Testing for E. coli in water supplies is a standard practice because its presence signals potential contamination with pathogens that can pose health risks to humans.

While Listeria, Salmonella, and Clostridium are also significant bacteria that can cause foodborne illnesses, they are not specifically associated with sewage in the same way that E. coli is. Listeria is typically found in contaminated food products, Salmonella is often linked to poultry and contaminated eggs, and Clostridium can thrive in poorly preserved foods. These distinctions highlight why E. coli is the most relevant choice in the context of sewage-related bacteria.