Correct Answers.
are permanent inhabitants of the skin and cannot usually be removed with routine
handwashing. They live and multiply harmlessly deep in skin layers. - Answer resident flora.
are normal microbes that you acquire by coming in contact with objects or another person -
Answer transient flora.
are microorganisms that are capable of causing disease. - Answer pathogens
Once a pathogen enters a host, four factors determine whether the person develops infection: -
Answer Virulence - power to cause disease.
Host environment
Number of organisms
Host defense
A source of an infection? - Answer reservoir
What are the 6 links in the chain of infection? - Answer 1. Infectious Agent
2. Reservoir
3. Portal of Exit
4. Mode of Transmission
5. Portal of Entry
6. Susceptible Host
most pathogens flourish in? - Answer warm, dark, moist environments.
a contaminated object that transmits an infection? - Answer fomite
an organism that carries an infection? - Answer vector
, stage of infection where the patient begins to experience vague symptoms? - Answer
prodrome
Condition occurs at a stable, predictable rate within a particular environment, region, or
population. - Answer edemic
when there is a sudden increase in the number of people with a condition that is greater than
expected. Outbreaks are limited to relatively small areas - Answer outbreak
is an outbreak of a disease that spreads over a large geographic region or in a defined
population group - Answer epidemic
is an exceptionally widespread epidemic—that is, one that affects a large number of people in
an entire country or worldwide. - Answer pandemic
occurs when the body makes its own antibodies or T lymphocytes (also called T cells) to protect
the body against a pathogen. - Answer active immunityt
when a person receives antibodies that come from someone else rather than producing them
through their own immune system, as in immunizations and mother's milk - Answer passive
immunity
An immune response occurs when the body is exposed to weakened or dead pathogens in a
vaccine. - Answer artificial active immunity
Protection from infection is achieved when a person receives serum from another person or
animal that has already produced antibodies against the pathogen - Answer artificial passive
immunity
are proteins on the outer surface of pathogens that evoke an immune response. - Answer
antigen
How long should you wash your hands in a surgical setting? - Answer 2 - 6 minutes
is the elimination of all microorganisms (except prions) in or on an object. - Answer