What are the 5 portals of entry?

What are the 5 portals of entry?

Portals of entry into the human body include inhalation, absorption (via mucous membranes, eyes or naughty bits), ingestion (via the gastrointestinal tract), inoculation (as the result of puncture or trauma) or introduction (insertion of medical devices).

What are the six portals of entry?

Portals of entry into the human body include:

  • Inhalation (via the respiratory tract)
  • Absorption (via mucous membranes such as the eyes)
  • Ingestion (via the gastrointestinal tract)
  • Inoculation (as the result of an inoculation injury)
  • Introduction (via the insertion of medical devices)

What is the most common portal of entry?

Mucosal surfaces are the most important portals of entry for microbes; these include the mucous membranes of the respiratory tract, the gastrointestinal tract, and the genitourinary tract.

What are portals of entry and exit?

Portals of entry and exit in horizontal transmission include all body surfaces, or the blood stream, by arthropod bite. Vertical transmission may occur in the ovum, via the placenta, during birth, or in the colostrum or milk. The mode of exit is not necessarily the same as the portal of entry.

What does portal of entry refers to?

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.

What is the definition of portal of exit?

A portal of exit is the site from where micro-organisms leave the host to enter another host and cause disease/infection. For example, a micro-organism may leave the reservoir through the nose or mouth when someone sneezes or coughs, or in faeces.

What is the portal of entry of influenza?

Influenza is spread mainly from person to person by droplet infection or droplet nuclei created by sneezing, coughing or talking. The portal of entry of the virus is the respiratory tract. The incubation period is about 18 to 72 hours.

What is the portal of exit for pneumonia?

One of the steps is a portal of exit, which is the method of how a pathogen leaves the host. S. pneumoniae bacteria typically cause lung infection such as pneumonia, and its portal of exit would most likely be the respiratory tract.