Ch. 15 Infection Control - Key Terms
Parasite
an organism that lives in or on an organism of another species - 406
Aerobic
requires oxygen to live - 406
Anaerobic
live and reproduce in the absence of oxygen - 406
Bacteria
simple one celled organisms that multiply rapidly - 406
Microorganism
small, living organism that is not visible to the naked eye - 406
Nonpathogens
microorganisms that are beneficial in maintaining other body processes - 406
Pathogens
cause infection and disease
Protoza
one celled animal like organisms often found in decayed materials - 408
Fungi
simple, plant like organisms that live on dead organic matter - 408
Viruses
Rickettsiae
parasitic microorganisms that cannot live outside the cells of another living organism - 408
Ebola
filoviruses that cause hemorrhagic fever, a disease that begins with flu like symptoms - page 409
Hepatitis B
caused by HBV virus and transmitted by blood, serum, and other bodily secretions - pg 410
Hepatitis C
caused by HEP C - transmitted by blood and blood containing body fluids - pg 410
AIDS
caused by HIV and it suppresses the immune system - pg 410
Helminths
multicellular parasitic organisms called worms or flukes pg 410
Health care associated infection (HAI)
infection acquired by an individual in a health care facility such as a hospital or long term care facility - pg 410
Opportunistic
reduce the incidence of HAIs - 411
Chain of infection
certain conditions that must be met to prevent disease and spread - 411
Reservoir
an area where the infectious agent can live - 411
Portal of exit
a way for the infection agent to escape from the reservoir - 411
Mode of transmission
a way that the infectious agent can be transmitted to another reservoir or host where it can live - 412
Portal of entry
a way for the infectious agent to enter a new reservoir or host
Susceptible host
a person likely to get an infection or diease usually because body defenses are weak
Asepsis
defined as the absence of disease produced microorganisms or pathogens - pg 412