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The portal of entry refers to the manner in which a pathogen enters a susceptible host. The portal of entry must provide access to tissues in which the pathogen can multiply or a toxin can act. Often, infectious agents use the same portal to enter a new host that they used to exit the source host.
- Chain of Infection Components - Centers for Disease Control and Prevention
Portal of Entry: Opening where the pathogen may enter. Body...
- Chain of Infection Components - Centers for Disease Control and Prevention
The 'Portal of Entry' refers to the route through which an infectious agent enters a new host. Common portals of entry in the human body include respiratory tract, gastrointestinal tract, genitourinary tract, conjunctiva, mucous membranes, and skin.
Portal of Entry: The route by which an infectious agent enters a new host (i.e., the reverse of the portal of exit). For example, mucous membranes, skin breakdown, and artificial openings in the skin created for the insertion of medical equipment (such as intravenous lines) are at high risk for infection because they provide an open path for ...
por·tal of en·try. Refers to the process whereby a pathogen enters the body, gains access to susceptible tissues, and causes disease or infection (e.g., direct contact, ingestion, inhalation).
Portal of Entry: Opening where the pathogen may enter. Body openings (e.g., mouth, eyes, urinary tract, respiratory tract), incisions, wounds. Susceptible Host: The person at-risk: patient or healthcare worker. Factors affecting susceptibility (e.g., age, health, co-morbidities, immune system, nutrition, infective dose, medications) Previous. Next.
Pathogenesis is the process by which an infection leads to disease. Pathogenic mechanisms of viral disease include (1) implantation of virus at the portal of entry, (2) local replication, (3) spread to target organs (disease sites), and (4) spread to sites of shedding of virus into the environment.
24 gru 2022 · In droplet contact and other airborne transmission it is generally the respiratory system through the nose, mouth, or eye surfaces. In direct physical and indirect contact it is generally through a wound in the skin or through a mucous membrane. In fecal-oral transmission, it is through the mouth.
