Animal Hookworms and Trichostrongylus

Question 1

Ancylostoma caninum (Dog) and Ancylostoma Braziliense

(Cat) Hookworm

People would accidentally get the infection by:

Answer 1

○ Walking barefoot
○ Areas where there is improper sanitation of waste matter of pets

Question 2

Ancylostoma caninum (Dog) and Ancylostoma Braziliense

Life cycle will not completely develop in ______

Answer 2

humans

Question 3

Ancylostoma caninum (Dog) and Ancylostoma Braziliense

only ____ stages are recovered found underneath
the skin of humans

Answer 3

larval

Question 4

Ancylostoma caninum (Dog) and Ancylostoma Braziliense

dog

Answer 4

Caninum

Question 5

Ancylostoma caninum (Dog) and Ancylostoma Braziliense

3 pairs of teeth

Answer 5

Caninum

Question 6

Ancylostoma caninum (Dog) and Ancylostoma Braziliense

big buccal cavity

Answer 6

Caninum

Question 7

Ancylostoma caninum (Dog) and Ancylostoma Braziliense

cat

Answer 7

Braziliense

Question 8

Ancylostoma caninum (Dog) and Ancylostoma Braziliense

2 pairs of teeth

Answer 8

Braziliense

Question 9

Ancylostoma caninum (Dog) and Ancylostoma Braziliense

smallest in size

Answer 9

Braziliense

Question 10

Ancylostoma caninum (Dog) and Ancylostoma Braziliense

Pathology:

Answer 10

• CLM
• Patient would experience redness & itchiness at the site of penetration
• L3 Larva can be found underneath the skin

Question 11

Ancylostoma caninum (Dog) and Ancylostoma Braziliense

CLM meaning

Answer 11

Cutaneous Larva Migrans or Creeping
eruption

Question 12

Ancylostoma caninum (Dog) and Ancylostoma Braziliense

Diagnosis:

Answer 12

• stool examination is not appropriate
• Biopsy
• Serological testing

Question 13

Sizes of different Hookworms:

Answer 13

1. Ancylostoma caninum (biggest)
2. Ancylostoma duodenale
3. Necator americanus
4. Ancylostoma Braziliense (smallest)

Question 14

1 pair of teeth

Answer 14

Ancylostoma ceylanicum

Question 15

Animal parasite that can completely develop in
humans

Answer 15

Ancylostoma ceylanicum

Question 16

Related to hookworms

Answer 16

Trichostrongylus

Question 17

Trichostrongylus

Final Host

Answer 17

Herbivores (like cattles, sheep)

Question 18

Trichostrongylus

accidental host,

Answer 18

man

Question 19

Similar to hookworms; but no heart lung migration

Answer 19

Trichostrongylus

Question 20

Hookworm vs. Trichostronglylus Egg

Smaller

Answer 20

Hookworm

Question 21

Hookworm vs. Trichostronglylus Egg

Rounded

Answer 21

Hookworm

Question 22

Hookworm vs. Trichostronglylus Egg

Elongated & larger

Answer 22

Trichostrongylus

Question 23

Hookworm vs. Trichostronglylus Egg

Has a pointed end

Answer 23

Trichostrongylus

Question 24

Animal Ascarids:

Answer 24

Toxocara cati & Toxocara canis

Question 25

# Toxocara Cati Final Host

Answer 25

Cat

Question 26

# Toxocara Canis Final Host

Answer 26

Dog

Question 27

# Animal Ascarids Accidental Host

Answer 27

Humans

Question 28

# Animal Ascarids MOT

Answer 28

Ingestion of Embryonated Eggs

Question 29

# Animal Ascarids Only ____ stages will be recovered in humans

Answer 29

larval

Question 30

# Animal Ascarids Larval stages found in different _______

Answer 30

visceral organs

Question 31

# Animal Ascarids Disease:

Answer 31

Visceral Larva Migrans

Question 32

# Animal Ascarids After ingestion of embryonated egg, the larva will be released and develop up to the ______ | Visceral Larva Migrans

Answer 32

L2 larval stage

Question 33

# Animal Ascarids L2 larval stage can _____ (embedded into the tissue) | Visceral Larva Migrans

Answer 33

encyst

Question 34

# Animal Ascarids Other disease associations:

Answer 34

○ Ocular Larval Migrans (OLM) ○ Covert toxocariasis - Hidden

Question 35

# Animal Ascarids affects the eyes | Other disease associations:

Answer 35

Ocular Larval Migrans (OLM)

Question 36

# Animal Ascarids Hidden | Other disease associations:

Answer 36

Covert toxocariasis

Question 37

# Animal Ascarids _____ usually affected

Answer 37

Children

Question 38

Animal Ascarids: Diagnosis

Answer 38

● Antigen detection and molecular methods ● Detection of larva (biopsy) ● ELISA ● Molecular methods ● Patients also have elevated levels of eosinophils

Question 39

# Animal Ascarids: Diagnosis (Detection of Ab such as IgG) using Toxocara excretory antigens

Answer 39

ELISA

Question 40

Animal Ascarids: Treatment

Answer 40

● Albendazole ● Mebendazole ● together with anti-inflammatory medications