Second, a swimmerâs body has a pH between 7.2 and 7.8, so if the. pool water isnât kept in this range then swimmers will start to feel irritation of their. eyes and skin. Keeping the pH in this range will balance chlorineâs germ-killing.
Examples of Pathogens and How They Spread. Any organism that can produce disease is a pathogen. The term came into use in the 1880s and is now used to describe any infectious agents â a bacterium, virus, viroid, fungus, prion and parasite-are all examples of pathogens. Through Body Fluids: Pathogen can infect you by entering your body through semen and blood. 2  Some of the most common examples of pathogens that spread through body fluids are hepatitis and HIV viruses. 3  Vectors: It's an animal that spreads disease-causing pathogens from one host to another.
However, in a host whose immune system is not functioning properly, the bacteria can cause an infection that leads to a disease. In those cases, the disease can help the bacteria spread to another host. Examples of opportunistic bacterial pathogens include Vibrio cholerae and Pseudomonas aeruginosa. Finally, some bacterial pathogens cause disease only accidentally. Indeed, the disease actually limits the spread of the bacteria to another host.