A pathogen is an organism that can cause a disease.
Any pathogen causes disease. Which disease depends on which pathogen.
A pathogen causes infectious disease. For instance, influenza virus is the pathogen that causes flu.
A pathogen is an organism that causes disease (they are PATHOlogy GENerators). A pathogen that does not cause disease is an oxymoron.
A very broad answer to a very broad question... A "pathogen" as defined by a dictionary would be, "any disease-producing agent, esp. a virus, bacterium, or other microorganism." First- a "pathogen" in drinking water will cause nothing unless someone or something drinks the water or if the "pathogen" enters the body/host by some other means... Second- even once the "pathogen" enters the body it may still cause nothing, as the quantity of the "pathogen" must be sufficient to cause the would be disease... Third- because a "pathogen" could be any one of millions of things, what disease would be caused by your hypothetical "pathogen in the drinking water" would depend entirely on what it is... You should seriously consider being more specific about your question. If you are interested in a specific pathogen and the associated disease, please try again.
Pathogen.
Pathogen is the agent or the culprit that causes a disease while the disease is the end result of what a pathogen did. Example: HIV virus is the pathogen while AIDS is the disease state that can result from high HIV viral load.
No, I believe it is a pathogen.
They are called "bacterial pathogens".
Pathogenicity is the ability of an organism to cause disease.
pathogen
pathogen