![]() ![]() The route through which the pathogen enters its new host Pathogens often enter the body of the host through the same route they exited the reservoir, e.g., airborne pathogens from one person’s sneeze can enter through the nose of another person. Infectious agents get into the body through various portals of entry, including the mucous membranes, non-intact skin, and the respiratory, gastrointestinal, and genitourinary tracts. □Interaction by medical procedure (catheter). (Eyes, Nose, Mouth) of susceptible person.Droplets land directly on mucous membranes.Infected person coughs, sneezes, talks, sings,.Close contact with infected person (Secretion of infected person, Example: – Cough and sneezing.Īgent is coughed or sneezed out into the air Route of transmission from respiratory tract (Nose, Mouth) The way of the pathogen gets from the reservoir to the new host. The largest droplets settle out of the air rapidly, within seconds to minutes. These droplets carry viruses and transmit infection. People release respiratory fluids during exhalation (e.g., quiet breathing, speaking, singing, exercise, coughing, sneezing) in the form of droplets across a spectrum of sizes. Route by which the infectious micro-organism escapes or leaves the reservoir,Ĥ. For a human reservoir, the portal of exit can include blood, respiratory secretions, and anything exiting from the gastrointestinal or urinary tracts. person, water, food, animal, plant, soil or substance feces, intravenous fluid, and equipment in which an infectious agent normally lives and multiplies.Ī portal of exit is the means by which a pathogen exits from a reservoir. The infectious agent depends on the reservoir for survival, where it can reproduce itself in such manner that it can be transmitted to a susceptible host. In contrast, tuberculosis bacillus infects only a small number of people, usually people with weakened immune function, or those who are undernourished and living in crowded conditions.Īny disease-causing microorganisms (bacteria, virus, fungi, parasites etc).Ī reservoir is any person, animal, arthropod, plant, soil or substance (or combination of these) in which an infectious agent normally lives and multiplies. For example, the smallpox virus is particularly virulent, infecting almost all people exposed. The virulence of these pathogens depends on their number, their potency, their ability to enter and survive in the body, and the susceptibility of the host. (Pathogens) include not only bacteria but also viruses, fungi, and parasites. If any link is broken the chain is broken and infection cannot be transmitted. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |