Family: HETEROPHYIDAE

Question 1

Family HETEROPHYIDAE characteristics:

Answer 1

Small intestinal flukes
Small Trematodes (usually not over 3 mm long)
Body covered with scales

Question 2

Genera of Family HETEROPHYIDAE

Answer 2

Heterophyes
Metagonimus

Question 3

Host of Heterophyes heterophyes

Answer 3

Dog, cat, fox, man

Question 4

Heterophyes heterophyes site:

Answer 4

Small intestine

Question 5

Heterophyes heterophyes IH:

Answer 5

1st - Cerithidia cingulata or Pirenella conica
2nd - Tilapia sp, Mugil sp

Question 6

Treatment of Heterophyes heterophyes

Answer 6

Carbon tetrachloride
Praziquantel
Niclofolan
Niclosamide

Question 7

Host of Metagonimus yokogawai

Answer 7

Dog, cat, pig, man

Question 8

Site of Metagonimus yokogawai

Answer 8

Small intestine

Question 9

IH of Metagonimus yokogawai

Answer 9

1st - snail(Semisulcospira libertina)
2nd - freshwater fish (trout and salmon)

Question 10

Life Cycle of Heterophyes heterophyes

Answer 10

Eggs ingested by snail
Miracidium develops inside the snail and the other larval stages follows
Cercaria is ingested by the the 2nd intermediate host which bears the metacercaria
Ingestion of raw or unthoroughly cooked fish