What are the three phases of infection process?

Stages of Infectious Disease:
  • Incubation stage. – The time between the acquisition of the pathogen and the onset of symptoms.
  • Prodrome stage. – Nonspecific symptoms, such as fever or tiredness, occur.
  • Disease-specific symptoms. – Increase rapidly.
  • Recovery. ...
  • Health.

What are the 3 phases of infection process?

The different phases in infections include: Infective period. Communicability period.

What are the phases of infectious diseases?

The five periods of disease (sometimes referred to as stages or phases) include the incubation, prodromal, illness, decline, and convalescence periods (Figure 12.2. 1). The incubation period occurs in an acute disease after the initial entry of the pathogen into the host (patient).

What are the 3 main ways an infection enters the body?

Pathogens can enter the body by coming into contact with broken skin, being breathed in or eaten, coming into contact with the eyes, nose and mouth or, for example when needles or catheters are inserted.

What are the 4 phases of infection?

10.3B: Disease Development
  • Stages of Disease.


What is the acute stage of infection?

Acute infections begin with an incubation period, during which the genomes replicate and the host innate responses are initiated. The cytokines produced early in infection lead to classical symptoms of an acute infection: aches, pains, fever, malaise, and nausea.

What is the convalescent phase?

Convalescence is the period in which the body recovers from a serious illness, injury or surgery. Changes to your lifestyle may be needed to make sure the body has enough time and rest to allow a complete recovery.

What are 3 ways to reduce possible spread of infection?

As well as maintaining good general health, there are some basic actions that everyone can take to stop the spread of infectious diseases:
  • Immunise against infectious diseases.
  • Wash and dry your hands regularly and well.
  • Stay at home if you are sick.
  • Cover coughs and sneezes.
  • Clean surfaces regularly.
  • Ventilate your home.

What are the routes of transmission of infection?

Modes of transmission
  • Direct. Direct contact. Droplet spread.
  • Indirect. Airborne. Vehicleborne. Vectorborne (mechanical or biologic)

How do you break the chain of infection at each stage?

How to Break the Chain
  1. Execute hand hygiene.
  2. Make use of personal protective equipment (PPE) when exposure to infection is possible.
  3. Observe respiratory hygiene (cough etiquette)
  4. Practice proper patient placement.
  5. Handle, clean, and disinfect patient care equipment and environment properly.
  6. Carefully handle laundry.

Which of the following is the correct order for the stages of infection?

The six links include: the infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host. The way to stop germs from spreading is by interrupting this chain at any link.

What are the 3 types of infections?

What causes infections? “Germs” is another word for microorganisms or microbes that cause disease. The three major types of germs we usually hear about are bacteria, viruses, and fungi.

Which three main elements make up the chain of infection?

Healthcare acquired infections (HAIs) are the result of a sequence of events that take place between an infectious agent (or pathogen), a host and an environment – in a process that is referred to as the 'chain of infection'.

What is the prodromal stage of infection?

The prodromal stage refers to the period after incubation and before the characteristic symptoms of infection occur. People can also transmit infections during the prodromal stage. During this stage, the infectious agent continues replicating, which triggers the body's immune response and mild, nonspecific symptoms.

What are the different sources of infection?

Infectious diseases can be caused by:
  • Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis.
  • Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS.
  • Fungi. ...
  • Parasites.

What are the methods of infection control?

Infection Control Basics
  • Disinfection and sterilization.
  • Environmental infection control.
  • Hand hygiene.
  • Isolation precautions.
  • Multidrug-resistant organisms (MDRO)
  • Catheter-associated urinary tract infections (CAUTI)
  • Intravascular catheter-related infection (BSI)
  • Organ transplantation.

What is the most common method to prevent infection?

Proper hand washing is the most effective way to prevent the spread of infections in hospitals. If you are a patient, don't be afraid to remind friends, family and health care providers to wash their hands before getting close to you.

What are three 3 ways to prevent cross infection in the early childhood environment ensure you include hand hygiene?

The 3 most effective ways of stopping childhood infections spreading are vaccination, exclusion (staying at home when you are sick), and hand washing.

What is incubation period?

What Is an Incubation Period? The incubation period is the number of days between when you're infected with something and when you might see symptoms. Health care professionals and government officials use this number to decide how long people need to stay away from others during an outbreak.

What is the difference between portal of entry and portal of exit?

Portals of entry are often the same as the portal of exit in the disease host. This is seen with the influenza virus. Flu exits through the respiratory tract in the host and enters through the respiratory tract in the susceptible host. Other portals of entry include through the skin, mucous membranes, and blood.

What is the other term for convalescent stage?

In this sense, "recovery" can be considered a synonymous term.

What is acute phase?

any action or change of condition evoked by a stimulus. acute phase response a group of physiologic processes occurring soon after the onset of infection, trauma, inflammatory processes, and some malignant conditions.

What does it mean by acute phase?

A group of physiologic changes that occur shortly after the onset of an infection or other inflammatory process and include an increase in the blood level of various proteins, especially C-reactive protein, fever, and other metabolic changes.

What is acute stage?

Acute: Early onset of symptoms, the maturation phase has not begun. They are generally in the inflammatory or fibroblastic stage of healing, maybe early maturation.

Which describes the correct order of events in the spread of disease?

Answer: The right answer is pathogens → exposure → sickness. An infectious disease is a disease caused by the transmission of a micro-organism or pathogen: virus, bacteria, parasite, fungus, protozoa, after exposure to the latter.
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