FINALS: Echinostomid Flukes

Question 1

“Garrisons fluke”

Answer 1

Echinostoma ilocanum

Question 2

Characterized by having a collar of spines behind the oral sucker and encyst in mollusk or fishes

Answer 2

Echinostomid Flukes

Question 3

Species documented in the Philippines:

Answer 3

o Echinostoma ilocanum
o Artyfechinostomum malayanum

Question 4

Definitive host:

Answer 4

ducks, rodents

Question 5

Accidental host:

Answer 5

humans

Question 6

Echinostoma ilocanum
1st IH

Answer 6

Gyraulus convexiusculus
Hippeutis umbilicalis

Question 7

Artyfechinostomum malayanum
1st IH

Answer 7

Indoplanorbis exustus
Gyraulus convexiusculus

Question 8

Echinostoma ilocanum
2nd IH

Answer 8

Pila luzonica (kuhol)
Vivipara angularis (susong pampang)

Question 9

Artyfechinostomum malayanum
2nd IH

Answer 9

Lymnaea cumingiana (birabid)
Ampullarius canaliculatus (golden apple snail)

Question 10

Infective Stage:

Answer 10

metacercariae

Question 11

Diagnostic Stage:

Answer 11

unembryonated egg

Question 12

Straw-colored
Operculated and ovoid
Smaller

Answer 12

Echinostoma ilocanum egg

Question 13

Golden brown
Operculated and ovoid
Larger

Answer 13

Artyfechinostomum malayanum egg

Question 14

• Color: reddish-gray • Acetabula: 49-51 collar spines in oral suckers

Answer 14

Adult worm