INTRODUCTION TO PARASITOLOGY

Question 1

study of the relationship between parasite
and host

Answer 1

Parasitology

Question 2

organisms that infect other living organisms

Answer 2

Parasites

Question 3

organism that harbors the parasite.

Answer 3

Host

Question 4

deals with the parasites, which cause human infections and the diseases they produce

Answer 4

Medical parasitology

Question 5

first introduced a single lens microscope and observed Giardia in his own stools.

Answer 5

Antonie van
Leeuwenhoek

Question 6

first published scientific
study on protozoa

Answer 6

Louis Pasteur

Question 7

seminal discovery was made in 1878 about the role of mosquitoes in filariasis.

Answer 7

Patrick Manson

Question 8

he dicover the first evidence of
vector transmission.

Answer 8

Patrick Manson

Question 9

discovered the malarial parasite

Answer 9

Laveran

Question 10

showed the transmission
of mosquitoes

Answer 10

Ronald Ross

Question 11

inhabit only the body surface of the host without penetrating
the tissue.

Answer 11

Ectoparasite

Question 12

parasite, which lives within the body of the host and is said to
cause infection.

Answer 12

Endoparasite

Question 13

It refers to nonparasitic stages of active existence, which live
independent of the host, e.g. cystic stage of Naegleria fowleri.

Answer 13

Free-living parasite

Question 14

dependent to host e.g.Toxoplasma gondii and
Plasmodium.

Answer 14

Obligate parasite

Question 15

Naegleria fowleri.

Answer 15

Facultative parasite

Question 16

Echinococcus granulosus infects
man accidentally, giving rise to hydatid cysts.

Answer 16

Accidental parasites

Question 17

Toxocara canis (dog
roundworm) infecting humans

Answer 17

Aberrant parasites

Question 18

The host, in which the adult parasite lives and
undergoes sexual reproduction. e.g. mosquito acts as what
host in malaria

Answer 18

Definitive host

Question 19

The host, in which the larval stage of the
parasite lives or asexual multiplication takes place

Answer 19

Intermediate host

Question 20

A host, in which larval stage of the parasite
remains viable without further development

Answer 20

Paratenic host

Question 21

In an endemic area, a parasitic infection is
continuously kept up by the presence of a host, which harbors the
parasite and acts as an important source of infection to other
susceptible hosts,

Answer 21

Reservoir host

Question 22

The host, in which the parasite is not usually
found, e.g. man is an accidental host for cystic echinococcosis.

Answer 22

Accidental host

Question 23

who
defined zoonosis

Answer 23

1959, the World Health Organization (WHO)

Question 24

those diseases and infections, which are naturally transmitted between
vertebrate animals and man

Answer 24

zoonosis

Question 25

toxoplasmosis, leishmaniasis, balanlidiasis, and
cryptosporidiosis.

Answer 25

Protozoal zoonoses

Question 26

hydatid disease, taeniasis.

Question 27

Infections transmitted to man from lower vertebrate
animals, e.g. cystic echinococcosis.

Answer 27

Anthropozoonoses

Question 28

Infections transmitted from man to lower vertebrate
animals, e.g. human n1berculosis to cattle.

Answer 28

Zooanthroponoses