Define the term "pathogen transmission".

Pathogen transmission refers to the process by which a pathogen, such as a virus, bacterium, or parasite, is spread from one host to another. This can occur through various routes, including direct contact, airborne particles, vector-borne methods, or contaminated surfaces. Understanding this concept is crucial in epidemiology and public health, as it lays the groundwork for implementing preventive measures to control the spread of infectious diseases.

This definition encompasses various forms of transmission, such as zoonotic transmission (from animals to humans), person-to-person contact, and environmental routes. Such insights are vital for developing strategies to limit outbreaks and control infections. The other options provided do not accurately capture the essence of transmission, as they focus on eradication, vaccination, or isolation rather than the actual process of spreading pathogens.