Nematode Parasites

Question 1

Ancylostoma caninum egg appearance

Answer 1

Thin shells & multiple cell clusters

Question 2

Ancylostoma caninum transmission

Answer 2

Perinatal

Question 3

Ancylostoma caninum diagnosed

Answer 3

Fecal Flotation

Question 4

Cutaneous Larva Migrans is?

Answer 4

Skin inflammation caused by a migrating roundworm larva

Question 5

Cutaneous Larva Migrans zoonotic?

Answer 5

Yes

Question 6

Cutaneous Larva Migrans diagnosis

Answer 6

Syndrome & history of exposure

Question 7

Toxocara canis egg appearance

Answer 7

Round with a thick pitted shell

Question 8

Toxocara canis lifecycle

Answer 8

Visceral migration occurs in pups less than 3 months old.
Dormancy occurs in older dogs
Mobilization to the uterus is seen in the last trimester of pregnancy

Question 9

Toxocara canis definitive host

Answer 9

Dogs

Question 10

Toxocara canis transmission

Answer 10

Transplacental & Transmammary

Question 11

Toxocara canis diagnosis

Answer 11

Eggs in feces - sometimes adult worms
adult worms in vomit

Question 12

Toxocara canis is common in?

Answer 12

Puppies & Kitties

Question 13

Visceral Larva Migrans is?

Answer 13

Damage to the body’s internal organs that is caused by a migrating roundworm larva

Question 14

Visceral Larva Migrans causative parasites?

Answer 14

Toxocara canis
Toxocara cati
Baylisascaris procyonis

Question 15

Visceral Larva Migrans zoonotic?

Answer 15

Yes

Question 16

Visceral Larva Migrans transmission

Answer 16

Ingestion of infective worm eggs generally caused by ingesting infected fecal matter

Question 17

Visceral Larva Migrans incubation period?

Answer 17

Weeks to months

Question 18

Visceral Larva Migrans Diagnosis?

Answer 18

CBC
Serology
ELISA Test

Question 19

Trichuris vulpis eggs appearance

Answer 19

Barrel shaped with transparent plugs (operculum) at each end

Question 20

Trichuris vulpis diagnosis

Answer 20

Eggs in the feces

Question 21

Dirofilaria immitis egg appearance

Answer 21

No eggs, microscopic microfilaria produced

Question 22

Dirofilaria immitis life cycle

Answer 22

Adults live in the right ventricle of the heart & the pulmonary artery

Question 23

Dirofilaria immitis clinical disease is observed?

Answer 23

9-10 months after dog is infected

Question 24

Dirofilaria immitis diagnosis

Answer 24

Microfilaria in blood
- Blood smear
- Microhematocrit Tube
- Knitts Test
- Filter Test
- Antibody Test

Question 25

Strongylus vulgaris egg appearance

Answer 25

Oval with a thin shell & multiple cell clusters in the center

Question 26

Strongylus vulgaris diagnosis

Answer 26

Eggs & larva in feces Larva can be found in the feces using the Baermann Technique

Question 27

Strongyloidea refers to?

Answer 27

A superfamily of parasites that produce strongyle type eggs

Question 28

Strongylus vulgaris adults live where in the body?

Answer 28

Adults lives in the colon & cecum Larva migrate through walls of the cranial mesenteric artery leading to pain, aneurysm, & infarction

Question 29

Strongylus vulgaris clinical signs

Answer 29

Unthriftiness Anemia Colic

Question 30

Strongylus vulgaris prevention

Answer 30

Feed horses off the ground

Question 31

Dirofilaria immitis intermediate host

Answer 31

Mosquito

Question 32

Strongylus vulgaris control

Answer 32

Total Egg counts on the pasture to know if you need to rotate the animals out of the pasture

Question 33

Oxyuris equi egg appearance

Answer 33

Eggs are oval with a transparent plug at one pole

Question 34

Oxyuris equi definitive host?

Answer 34

Horses

Question 35

Oxyuris equi diagnosis

Answer 35

Eggs in feces & around perianal area - Use scotch tape around the perianal area as the nematodes the leave anus generally at night to lay their eggs around the anal opening in the fur you will trap them in the tape - Fecal Float

Question 36

Ostertagia ostertagi egg appearance

Answer 36

Oval with a think shell multiple cell clusters in the center *Typical Trichostrongyles type egg

Question 37

Ostertagia ostertagi is diagnosed how?

Answer 37

Eggs in feces - Fecal Float

Question 38

Ostertagia ostertagi control/prevention options?

Answer 38

McMaster Egg Count to check pasture parasite load - pasture rotation

Question 39

Trichostrongyloidea refers to?

Answer 39

A superfamily of parasites that produce Trichostrongyle-type eggs

Question 40

Ostertagia ostertagi clinical signs/symptoms

Answer 40

Weightloss & Diarrhea

Question 41

Trichinella spiralis & Trichinella spp causes what disease?

Answer 41

Trichinosis

Question 42

Trichinosis refers to?

Answer 42

A parasitic disease acquired by eating inadequately cooked infected meat

Question 43

Trichinosis incubation period?

Answer 43

5-15 days

Question 44

Trichinosis is transmitted by?

Answer 44

Ingestion of raw or undercooked meat containing infected larva

Question 45

Trichinosis is diagnosed how?

Answer 45

Syndrome Serology Muscle Biospy

Question 46

Trichinosis control & prevention tips?

Answer 46

Cook meat well Freeze meat for at least 20 days Cook garbage prior to feeding it to swine Control rodents in swine rearing operations