Introduction Flashcards
Living together of unlike organisms
Symbiosis
2 species together.
One species benefits from the relationship w/o harming or benefiting the other.
Commensalism
2 organism benefit from each other
Mutualism
1 organism lives in or on another for its survival at the expense of the host
Parasitism
Lives inside the body of the host
“Infection”
Endoparasite
Lives outside the body of the host
“Infestation”
Ectoparasite
Parasite found in an organ which is not its usual habitat
Erratic
Need a host to complete their development
Obligate parasite
May exist in afree living state.
May become parasitic when the need arises
Facultative parasite
Parasite that established itself in a host where it does not ordinarily live
Accidental/incidental parasite
Remains on or in the host for its entire life
Permanent parasite
Libes on the host only for a short period of time
Temporary parasite
Free living organism. Passes thru the digestive tract w/o infecting the host
Spurious parasite
Harbors the asexual/larval stage of the paraasite
Intermediate host
One in which the parasite does not develop further to later stages. Parasite remains alive and is able to infect another host
Paratenic host
Allows the parasite’s life cycle to continue and become additional source of infection
Reservoir host
Transmits the parasite only after the latter has completed its develoment within the host
Biologic vector
Only transports the parasites
Mechanical/ phoretic vector
Study of patterns, distribution and occurrence of disease
Epidemiology
Number of new cases of infection in a given period of time
Incidence
Number of individuals estimated to be infected with a particular parasite
Prevalence
Clinical consequences of infections or diseases that an individual’s well-being
Morbidity
Use of antihelminthic drugs in an individual
Deworming
Provision of access to adequate facilities for the safe disposal of human excreta
Sanitation
