What are typical waterborne pathogens?

The correct answer highlights the common types of organisms that are known to cause waterborne diseases. Bacteria, viruses, and protozoa are all significant pathogens that can be transmitted through contaminated water sources, leading to serious health issues.

Bacteria, such as Escherichia coli and Salmonella, can cause gastroenteritis and other illnesses when ingested through contaminated drinking water. Viruses, including norovirus and hepatitis A, are also spread through water and can result in outbreaks of diseases affecting large populations. Protozoa, like Giardia and Cryptosporidium, are single-celled organisms that can persist in water sources and cause intestinal infections.

Understanding these pathogens is critical in water supply management and public health, as they help guide practices in water treatment, sanitation, and safety measures necessary to protect communities from waterborne illnesses.