[John-paul]

Thinking of your current or a past practice area provide an example of the train of transmission specific to that area. Fill in all ‘links’ in the chain with an example for each link:

Infectious Agent:

Reservoirs:

Portals of Exit:

Modes of Transmission:

Portals of Entry:

Susceptible Host:

[Saleema]

Infectious Agent: Influenza Virus

Reservoirs: Residents, staff and visitors in LTC home

Portals of Exit: Respiratory secretions such as coughing, sneezing

Modes of Transmission: Droplet during close contact and indirect contact such as contaminated hands.

Portals of Entry: Through the nose, mouth and eyes (mucous membranes)

Susceptible Host:Elderly residents, those with chronic illnesses, weakened immune systems, or incomplete vaccination status

[Damilola]

Infectious Agent: MRSA
Reservoirs: Patient,visitors and caregivers hands in the Hospital
Portal of Exit: drainage from wound and skin leision and nasal mucous
Mode of Transmission: Direct contact to infected area, Undisinfected blood pressure cuffs and transfer lifts
Portal of entry: Nose, open wound and perineal area
Susceptible Host: Immunocompromised person e.g Patient in ICU and burn unit. Frequent use of antibiotics

[Ochuko Bridget]

Practice Area: (Medical-surgical unit of a GTA hospital during my placement)

Chain of Transmission Example: (Respiratory Infection- COVID-19):

Infectious Agent: SARS-CoV-2 (virus causing COVID-19)
Reservoirs: Infected patients who were placed in shared rooms and hallway spaces, and also healthcare workers who are asymptomatic carriers
Portals of Exit: Respiratory secretions from coughing, sneezing, talking (droplets from nose and mouth)
Modes of Transmission: Droplet spread, especially when two infected patients are placed close together. Indirect contact via contaminated surfaces like the bed rails, IV poles, and curtains in crowded hallway settings
Portals of Entry: Mucous membranes of the eyes, nose, and mouth of nearby patients, staff, and visitors
Susceptible Host: Other hospitalized patients, especially elderly, immunocompromised, and post-surgical patients, healthcare workers with inadequate PPE use, and visitors

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