Ascarids

Question 1

Nematoda

Answer 1

roundworm

Question 2

Infective stage for ascarids

Answer 2

L3

Question 3

Ascarids- bursate or non bursate?

Answer 3

non- bursate

Question 4

All ascarids on anterior end?

Answer 4

3 lips

Question 5

Ascaris Suum

Answer 5

pig roundworm

Question 6

Ascaris Suum- host?

Answer 6

pigs

Question 7

Ascaris Suum- site of infection?

Answer 7

small intestine

Question 8

Ascaris Suum- paratenic hosts

Answer 8

earthworms and dung beetles

Question 9

Ascaris Suum- transplacental or transmammary transmission?

Answer 9

Neither

Question 10

Ascaris Suum- PPP

Answer 10

6-8 weeks

Question 11

Ascaris Suum- pathogenesis due to migrating juveniles?

Answer 11

“milk spots” in liver, respiratory distress, focal hemorrhages

Question 12

Ascaris Suum- pathogenesis due to adults

Answer 12

poor growth and performance, diarrhea

Question 13

Identify

Answer 13

Ascaris suum

Question 14

Parascaris equorum

Answer 14

horse roundworm

Question 15

Parascaris equorum- host?

Answer 15

equids

Question 16

Parascaris equorum site of infection

Answer 16

small intestine

Question 17

Parascaris equorum Transplacental or transmammary migration?

Answer 17

Only transmammary

Question 18

Parascaris equorum PPP

Answer 18

10 weeks

Question 19

Parascaris equorum Pathogenesis of migrating juveniles

Answer 19

respiratory distress and nasal discharge

Question 20

Parascaris equorum pathogenesis due to adult worms

Answer 20

moderate enteritis, colic, subnormal growth, dull hair coat

Question 21

Identify

Answer 21

Parascaris equorum

Question 22

Toxocara canis

Answer 22

dog roundworm

Question 23

Toxocara canis site of infection

Answer 23

adults in small intestines, juveniles migrate extensively

Question 24

Toxocara Canis-Transplacental or transmammary transmission?

Answer 24

transplacental transmission

Question 25

Toxocara canis- migrating juveniles

Answer 25

respiratory disease, 2-3 old day pups affected frequently

Question 26

Toxocara canis- adult worms in small intesitnes cause

Answer 26

nursing and weaned pups have pot bellies and tender bloated abdomens

Question 27

puppies spontaneously purge intestinal infections as they mature and develop immunity to

Answer 27

Toxocara canis

Question 28

identify

Answer 28

Toxocara canis egg

Question 29

identify

Answer 29

Toxocara canis adult

Question 30

feline roundworm

Answer 30

Toxocara Cati

Question 31

What species have age related immunity to what pasrasite?

Answer 31

Toxocara Canis only not Toxocara cati

Question 32

Toxocara cati-Transmammary or transplacental infection

Answer 32

transmammary

Question 33

identify

Answer 33

Toxocara cati

Question 34

identify

Answer 34

Toxocara cati adult

notice cervical alae

Question 35

Toxocara cati PPP

Answer 35

8 weeks

Question 36

How to get infected with Toxocara cati

Answer 36

Ingestion of Paratenic host (mouse) is important

Question 37

Host of Toxascaris leonina

Answer 37

dogs, cats, foxes and otehr wild carnivores

Question 38

Is there transplacental or transmammary transmission for Toxascaris leonina?

Answer 38

No

Question 39

Toxascaris leonina PPP

Answer 39

10 weeks

Question 40

Answer 40

Toxascaris Leonina

Question 41

Toxocara Vitulorum host

Answer 41

cattle

Question 42

identify

Answer 42

Toxocara vitulorum

Question 43

Bayliascaris procyonis hosts

Answer 43

• Raccoon
• can also infect dogs
• 150+ species of birds and mammals
• Wildlife; carnivores and omnivore

Question 44

identify

Answer 44

Baylisascaris procyonis

76 by 60 µm

Question 45

B procyonis vs T canis

Answer 45

B procyonis is smaller, darker and has finer pitting on the surface

Question 46

Ascarids - Public Health Significance

Answer 46

•Neurologic disease (Baylisascaris)

• CNS migration

Question 47

Ascarid infecting humans

Answer 47

Enterobius vermicularis