pathogens

Pathogens are microorganisms that can cause diseases in living organisms, including humans. They include bacteria, viruses, fungi, and parasites. When these tiny invaders enter the body, they can disrupt normal function, leading to illness. Pathogens can be spread in various ways, such as through contaminated food, water, or direct contact with infected individuals. The immune system works to fight off these invaders, but sometimes pathogens can overwhelm it, resulting in infection. Understanding pathogens is crucial for preventing diseases and promoting public health through practices like hygiene, vaccinations, and appropriate medical treatments.