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.
Infectious diseases are the invasion of a host organism by a foreign replicator, generally microorganisms, often called microbes, that are invisible to the naked eye. Microbes that cause illness are also known as pathogens.The most common pathogens are various bacteria and viruses, though a number of other microorganisms, including some kinds of fungi and protozoa, also cause disease. An infectious disease is termed contagious if it is easily transmitted from one person to another.nfectious disease requires an agent and a mode of transmission (or vector). A good example is malaria, which is caused by Plasmodial parasites, chiefly Plasmodium falciparum but does not affect humans unless the vector, the Anopheles mosquito, is around to introduce the parasite into the human bloodstream.