Intro To Para

Question 1

relationship between 2 unlike organisms

Answer 1

Symbiosis

Question 2

the members of the symbiotic
relationship

Answer 2

Symbiont/Symbiote

Question 3

area of biology concerned with the phenomenon of dependence of one living organism on another.

Answer 3

Parasitology

Question 4

concerned primarily with the animal parasites of humans and their medical significance, as well as their importance in human communities.

Answer 4

Medical parasitology

Question 5

both benefit (Ex: termites and flagellates)

Answer 5

Mutualism

Question 6

one benefits, one is not
affected/unharmed (Ex: Entamoeba coli in the intestinal
lumen)

Answer 6

Commensalism

Question 7

The organism is carried and nothing else happens

Answer 7

Phoresis/Phoretic

Question 8

one benefits (parasite) and one is harmed (host)

Answer 8

Parasitism

Question 9

• Harbors the mature form of the parasite
• Sexual reproduction and maturity takes
  places in these hosts
• Common FH are man

Answer 9

Definitive or Final Host

Question 10

• Harbors immature/larval form of the parasite
• Asexual reproduction takes place
• Ex: Lower animals, vegetation, insects,
  sometimes humans (in Plasmodium infections)

Answer 10

Intermediate host

Question 11

• Responsible for transmission

Answer 11

Vectors

Question 12

Vector that thereismorphologic
change or transformation of parasite before transmission to another host. Parasite is always inside

Answer 12

Biologic Vector

Question 13

no morphologic change occurs. Parasite always outside

Answer 13

Mechanical/Phoretic Vector

Question 14

Host that harbors a parasite that usually does not infect it

Answer 14

Accidental host

Question 15

One in which the parasite does not develop further to later stages
Parasite remains alive and is able to infect another host

Answer 15

Paratenic Host

Question 16

• Also known as Incidental Host
• Host that does not anymore allow the life
  cycle of the parasite to continue

Answer 16

Incidental Host or Dead end

Question 17

• Host other than the parasite’s usual hosts that allows the life cycle to continue
• Animals that can continue the life cycle even in absence of humans
• Becomes additional sources of human infection

Answer 17

Reservoir

Question 18

species which harbors the parasite
May show no harmful effects
May suffer from the pathogenic effects of the parasite

Answer 18

Host

Question 19

• Parasite that always requires a host to survive
• Most parasites

Answer 19

Obligate parasite

Question 20

• Has a free-living and parasitic phase

Answer 20

Facultative

Question 21

• Non-pathogenic
• Does not cause disease

Answer 21

Commensal

Question 22

Lives inside the body of the host
“Infection”

Answer 22

Endoparasite

Question 23

Lives outside the body of the host
“Infestation”

Answer 23

Ectoparasite

Question 24

Parasite found in an organ w/c is not its usual habitat

Answer 24

Erratic Parasite

Question 25

Remains on or in the body of the host for its entire life

Answer 25

Permanent Parasite

Question 26

Free-living organism
Passes through the digestive tract w/o infecting the host

Answer 26

Spurious Parasite

Question 27

Transient parasite

Answer 27

Temporary

Question 28

Number of patients infected at one point in time

Answer 28

Prevalence

Question 29

Percentage of individuals in a population infected with at least one parasite

Answer 29

Cumulative prevalence

Question 30

Number of new cases

Answer 30

Incidence

Question 31

Ongoing local transmission in one area

Answer 31

Endemic

Question 32

Outbreak; Sudden increase in number of cases

Answer 32

Epidemic

Question 33

Whole word epidemics

Answer 33

Pandemic

Question 34

Reduction to zero of incidence of a specified disease in an area

Answer 34

Elimination

Question 35

Permanent reduction to zero of worldwide incidence of an infection

Answer 35

Eradication

Question 36

Number of cases

Answer 36

Morbidity

Question 37

Number of Deaths

Answer 37

Mortality

Question 38

Use of anthelminthic drugs in an individual or public health program

Answer 38

Deworming