What are the 6 chain of infection?

The six links in the chain are:
  • The Infectious Agent – or the microorganism which has the ability to cause disease.
  • The Reservoir or source of infection where the microorganism can live and thrive. ...
  • The Portal of Exit from the reservoir. ...
  • The Mode of Transmission. ...
  • The Portal of Entry. ...
  • The Susceptible Host.


What are the 6 ways to break the chain of infection?

Break the chain by cleaning your hands frequently, staying up to date on your vaccines (including the flu shot), covering coughs and sneezes and staying home when sick, following the rules for standard and contact isolation, using personal protective equipment the right way, cleaning and disinfecting the environment, ...

What is the chain of infection CDC?

More specifically, transmission occurs when the agent leaves its reservoir or host through a portal of exit, is conveyed by some mode of transmission, and enters through an appropriate portal of entry to infect a susceptible host. This sequence is sometimes called the chain of infection.


What are the six links in the chain of infection quizlet?

Terms in this set (6)
  • Infectious Agent. the early sign of an infection.
  • Reservoir. an area where the infection agent can live.
  • Portal of exit. a way for the infection to escape from the reservoir.
  • Mode of Transmission. ...
  • Portal of Entry. ...
  • Susceptible Host.


How do you remember the chain of infection?

The Chain of Infection
  1. The First link in the chain is the causative agent. This is the harmful germ or pathogen that can cause infection, illness.
  2. The Second link is the reservoir or source. ...
  3. The Third link is the means of exit. ...
  4. The Fifth link is the portal of entry. ...
  5. The Sixth link in the chain is a person at risk.


What is the chain of infection



What is the chain of infection quizlet?

Path by which a pathogen leaves its host (previous home) (e.g., influenza viruses and Mycobacterium tuberculosis exit through the respiratory tract).

What starts the chain of infection?

The pathogen

The first link in the chain of infection is the infectious agent or pathogen which can take the form of: Viruses – such as Influenza A, shingles and Hepatitis. Bacteria – including Lyme disease and Leptospirosis.

How can nurses break the chain of infection?

Chain links can be broken by disinfecting the environment, sterilizing medical instruments and equipment, covering coughs and sneezes, using good hand hygiene, implementing standard and transmission-based precautions, appropriately using personal protective equipment, encouraging patients to stay up-to-date on vaccines ...


What are the stages of infection?

There are five stages of infection:
  • incubation.
  • prodromal.
  • illness.
  • decline.
  • convalescence.


How many links are in the chain of infection?

Certain conditions must be met in order for a microbe or infectious disease to be spread from person to person. This process, called the chain of infection, can only occur when all six links in the chain are intact. By breaking this chain at any of the links, the spread of infection is stopped.

Which is the correct order of the stages of infection?

To cause disease, a pathogen must successfully achieve four steps or stages of pathogenesis: exposure (contact), adhesion (colonization), invasion, and infection.


What are the 4 signs of infection?

Signs of Infection
  • Increased pain or swelling.
  • A foul smell from the wound.
  • Pus-like drainage, fever or chills.
  • Increasing redness around the wound.
  • Red streaks moving away from the wound.


What are the four main infection types?

The four different categories of infectious agents are bacteria, viruses, fungi, and parasites.

What actions must a CNA take to break the chain of infection?

Breaking the Chain: Protect Portals of Entry
  • Wearing proper PPE when you are knowingly exposed to a pathogen. Masks, gloves, face shields, etc.
  • Practicing hand hygiene consistently. ...
  • Isolating those who are infectious and minimizing contact.
  • Filtering or changing the flow of air.


What are the 3 methods of infection control?

Hand hygiene. Use of personal protective equipment (e.g., gloves, masks, eyewear). Respiratory hygiene / cough etiquette.

What is the droplet precaution?

A patient will be placed on droplet precautions when he or she has an infection with germs that can be spread to others by speaking, sneezing, or coughing. Everyone coming into the room of a patient under droplet precautions will be asked to wear a mask to prevent the spread of germs to themselves.

How do you break each link in the chain of infection?

Break the chain by cleaning your hands frequently, staying up to date on your vaccines (including the flu shot), covering coughs and sneezes and staying home when sick, following the rules for standard and contact isolation, using personal protective equipment the right way, cleaning and disinfecting the environment, ...


What are the five F of infection?

5 Fs that cause the spread of food borne diseases are Food (contaminated), Fingers (unclean), Faeces, Fomites, and Flies.

What are the five agents of infection?

The agents that cause disease fall into five groups: viruses, bacteria, fungi, protozoa, and helminths (worms).

What are the 5 most common infectious diseases?

Infectious diseases affect billions of people around the globe annually. According to WHO and the CDC, these infectious diseases are the five most common.
  • Hepatitis B. ...
  • Malaria. ...
  • Hepatitis C. ...
  • Dengue. ...
  • Tuberculosis.


What are the 7 signs of infection?

Know the Signs and Symptoms of Infection
  • Fever (this is sometimes the only sign of an infection).
  • Chills and sweats.
  • Change in cough or a new cough.
  • Sore throat or new mouth sore.
  • Shortness of breath.
  • Nasal congestion.
  • Stiff neck.
  • Burning or pain with urination.


What are the early warning signs of sepsis?

The signs and symptoms of sepsis can include a combination of any of the following:
  • confusion or disorientation,
  • shortness of breath,
  • high heart rate,
  • fever, or shivering, or feeling very cold,
  • extreme pain or discomfort, and.
  • clammy or sweaty skin.


What is the most common cause of sepsis?

Bacterial infections cause most cases of sepsis. Sepsis can also be a result of other infections, including viral infections, such as COVID-19 or influenza, or fungal infections.


What is the first stage of infection called?

Depending on the disease, the person may or may not be contagious during the incubation period. During latency, an infection is subclinical. With respect to viral infections, in incubation the virus is replicating.

What is the first step in infection?

The first step in infection is for the pathogen to colonize the host. Most parts of the human body are well-protected from the environment by a thick and fairly tough covering of skin.