Unit 2 - Fleas and Lice

Question 1

Cat flea

Answer 1

Ctenocephalides felis

Question 2

Dog Flea

Answer 2

Ctenocephalides canis

Question 3

Human Flea

Answer 3

Pulex irritans

Question 4

Sticktight flea

Answer 4

Echidnophaga gallinacea

Question 5

Oriental rat flea

Answer 5

Xenopsylla cheopis

Question 6

Are fleas host specific or do they have preferences?

Answer 6

Blood feeders with host preferences

Question 7

Diagnosis for fleas:

Answer 7

presence of fleas, eggs, larvae, flea feces (“dirt”), and/or characteristic pruritis

Question 8

Flea allergy dermatitis is an allergic reaction to:

Answer 8

antigens in flea saliva

Question 9

Most common cause of pruritis in dogs & cats:

Answer 9

flea allergy dermatitis

Question 10

List the prominent direct diseases associated with fleas:

Answer 10

flea bite dermatitis, anemia

Question 11

How do fleas cause anemia?

Answer 11

affects of blood loss dependent upon the size and immune status of the animal

Question 12

“flea tapeworm”

Answer 12

Dipylidium caninum

Question 13

Which flea species transmits Dipylidium caninum?

Answer 13

C. felis (IH)

Question 14

Non-pathogenic SQ infection of dogs that is transmitted by C. felis:

Answer 14

Acanthocheilonema reconditum (nematode)

Question 15

Cat Scratch Disease and Bacillary Angiomatosis (humans) is caused by what bacteria?

Answer 15

Bartonella henselae

Question 16

What is the reservoir for B. henselae?

Answer 16

Cats

Question 17

Which flea species transmits Bartonella henselae?

Answer 17

C. felis (flea feces)

Question 18

Plague

Answer 18

Yersinia pestis (bacteria)

Question 19

Yersinia pestis is transmitted by:

Answer 19

Xenopsylla cheopis (regurgitated during feeding)

Question 20

Which animal gets Myxoma virus (Myxomatosis) from fleas indirectly?

Answer 20

European rabbits

Question 21

List some of the other indirect diseases associated with fleas:

Answer 21

• Rickettsia typhi
• Rickettsia felis
• Francisella tularensis
• Hemoplasmas

Question 22

Are lice host-specific or preferential?

Answer 22

host specific

Question 23

sucking lice

Answer 23

Anoplura

Question 24

chewing/biting lice

Answer 24

Mallophaga

Question 25

How do you tell the difference (visually) between chewing and sucking lice?

Answer 25

Anoplura - head is narrower than thorax | Mallophage - head is broader than thorax

Question 26

Linognathus: Anoplura or Mallophaga?

Answer 26

anoplura

Question 27

Haematopinus: Anoplura or Mallophaga?

Answer 27

anoplura

Question 28

Solenoptes: Anoplura or Mallophaga?

Answer 28

Anoplura

Question 29

Trichodectes: Anoplura or Mallophaga?

Answer 29

Mallophaga

Question 30

Felicola: Anoplura or Mallophaga?

Answer 30

Mallophaga

Question 31

Damalinia: Anoplura or Mallophaga?

Answer 31

Mallophaga

Question 32

List the lice genuses that infect dogs:

Answer 32

Linognathus (A), Trichodectes (M)

Question 33

List the louse genus that infects cats:

Answer 33

Felicola (M)

Question 34

List the louse genuses that affect horses:

Answer 34

Damalinia (M), Haematopinus (A)

Question 35

List the louse genuses that infect cows:

Answer 35

Haematopinus (A), Linognathus (A), Solenoptes (A), Damalinia (M)

Question 36

List the louse genuses that infect sheep and goats:

Answer 36

Linognathus (A), Damalinia (M)

Question 37

List the louse genuses that infect humans:

Answer 37

Pediculus (A), Phthirus (A)

Question 38

Do lice have simple or complex metamorphoses?

Answer 38

simple

Question 39

Lice are vectors for which cestode of veterinary importance causing indirect disease?

Answer 39

Dipylidium caninum

Question 40

Lice are vectors for which virus of veterinary importance (indirect disease)?

Answer 40

Swine pox

Question 41

List the human disease agents that can be gotten from lice (via indirect disease):

Answer 41

- Epidemic typhus - Epidemic relapsing fever - Trench fever