What are "waterborne pathogens"?

Waterborne pathogens are disease-causing microorganisms that are transmitted through contaminated water sources. This includes a variety of harmful entities such as bacteria, viruses, and protozoa that can lead to severe health issues when ingested or contacted. These pathogens are typically found in water that has been contaminated by fecal matter from humans or animals, leading to illnesses such as gastrointestinal infections, cholera, and hepatitis.

The correct choice accurately identifies these pathogens as microorganisms that cause disease, setting them apart from other kinds of contaminants such as harmful chemicals or non-contaminated organisms. Understanding this definition is crucial for recognizing the public health risks associated with contaminated water supplies and emphasizes the importance of water quality monitoring and management practices in preventing disease outbreaks.