MPH Parasitology Flashcards
It refers to persistent, highs level of disease occurence
Hyperendemic Disease
an increase, often sudden, in the number of cases of a disease above what is normally expected in that population in that area
Epidemic Disease
Often used for a more limited geographic area. It is also had a same definition with epidemic.
Outbreak Disease
epideic that has spread over several countries or continents and usually affecting a large number of people
Pandemic Disease
disease that occurs infrequently and irregularly
Sporadic Disease
living togther of unlike organisms
Symbiosis
symbiosis in which one species benefifs from the relationshio without harming or benefitting the other
Commensalism
symbiosis in which two organisms mutually benefit each other
Mutualism
Symbiosis in which the parasite depends on another organism for its survival, usually at the expense of the host
Parasitism
a host in which the parasite reaches maturity and if possible reproduces sexually
Definitive Host
can harbor a pathogen indefinitely with no ill effects
Reservoir Host
host that harbors the parasite only for a short transition period
Intermediate Host
Host is similar to an intermediate host, only that it is not needed for the parasite’s development cycle to progress
Paratenic Host
Intermediate host that generally does not allow transmission to the definitive host
Dead-end Host
host preferred by a parasite
Host of predilection
is a host in which the level of pathogen can become high enough that a vector such as a mosquito that feeds on it will probably become infectious
Amplifying Host
Most parasite are obligate parasites (True or False)
True
Cannot survive outside the host
Obligate Parasite
Depend entirely upon their host for existence
Obligate Parasite
May exist in free-living state or may become parasitic when the need arise
Facultative Parasite
Parasite which remains on or in the body of the host for ENTIRE LIFE
Permanent Parasite
Parasite which lives on the host only for a SHORT PERIOD of time
Temporary Parasite