Chain of Infection
For Safety in Health Care
Exam Review 2023
CHAIN OF INFECTION
(Pathogenic Agents or Microorganisms -- Infectious Agent) (5 Types) -
... [Show More] ANS-1. Viruses
2. Bacteria
3. Protozoa
4. Fungi
5. Rickettsia
CHAIN OF INFECTION (Transfer of Infection) (6 Steps) - ANS-1. Infectious Agent
2. Reservoir Host
3. Portal of Exit
4. Mode of Transmission
5. Port of Entry
6. Susceptible Host
INFECTIONS -- Virus - ANS-smalled pathogens are intracellular parasites that take
over the DNA or RNA of the invaded cell and are cannot be cured with antibiotics only
palliative treatment -- treat symptoms
INFECTIONS -- Bacteria - ANS-tiny, simple cells that produce diseases and can
produce spores
INFECTIONS -- Protozoa - ANS-unicellular parasites transmitted by vectors bugs /
animals
INFECTIONS -- Fungi - ANS-Unicellular or multicellular and include such organisms as
mushrooms, molds and yeasts. Grow best in warm, moist environments
INFECTIONS -- Rickettsia - ANS-Microorganisms that have characteristics of both
bacteria and viruses but are larger than viruses so they can be viewed with a regular
microscope. Transmitted by vectors
TYPE OF INFECTIONS -- SLOW INFECTIONS - ANS-Slow Infections progress over
very long periods and typically refer to viral infections of the brain
TYPES OF INFECTIONS -- ACUTE INFECTIONS - ANS-Acute Infections have a rapid
onset of symptoms but last a relatively short time. The prodromal period is that time
when the patient first exhibits vague, nonspecific symptoms of the disease
TYPES OF INFECTIONS -- CHRONIC INFECTIONS - ANS-Chronic Infections persist
for a long period of time, sometimes for life and can be asymptomatic or without
symptoms but the virus is dedtectible wwith blood tests
TYPES OF INFECTIONS -- LATENT INFECTIONS - ANS-Latent Infections is a
persistent infection in which the symptoms cycle through periods of relapse and
remission
CHAIN OF INFECTIONS -- CONTACT - ANS-DIRECT CONTACT -- contact from an
infected person or with discharges from an infected person such as feces or urine
INDIRECT CONTACT -- [Show Less]