What are Pathogens?

Pathogens are defined as microbes that cause diseases. This includes a variety of microorganisms such as bacteria, viruses, protozoa, and fungi that can infect living organisms, including humans, animals, and plants, leading to a wide range of illnesses. The significance of pathogens in water systems is particularly concerning, as contaminated water can serve as a vector for disease transmission, impacting public health and the environment.

In contrast, chemical pollutants refer to harmful substances introduced into water systems through human activities, but they do not necessarily fall under the category of pathogens. Natural minerals, while important for health, have beneficial properties rather than pathogenic characteristics. Non-toxic substances in aquatic ecosystems, while an essential part of maintaining water quality, do not involve disease-causing agents and therefore are distinct from pathogens. Understanding what constitutes a pathogen is crucial for addressing issues related to water safety and disease prevention.