Zoonotic parasites for Exam 1

Question 1

• Eating raw crayfish tissue containing metacercarial stages
• Rarely occurs

Answer 1

Paragonimus kellicotti

Question 2

Swimming or wading in water infested with cercarial stages of these bird parasites. The cercariae penetrate the skin of humans producing an allergic reaction (WIWPHTH)

Answer 2

Schistosome cercarial dermatitis

Question 3

**If a human, usually a child, ingests a flea containing an infective cysticercoid of this common dog and cat tapeworm, the cysticeroid will develop to an adult in the intestine of the child. Name the parasite.

Answer 3

Dipylidium caninum

Question 4

Eating measly beef containing cysticerci and the human will develop adult tapeworms - the human becomes the definitive host!

Answer 4

Taenia saginata, cysticercus bovis

Question 5

Eating measly pork containing cysticerci. Human will become definitive host and develop adult tapeworms. Name the parasite.

Answer 5

Taenia solium, cysticercus cellulosae

Question 6

If humans don’t wash their hands and accidentally ingest the eggs of taenia solium, the human will become _____ and develop what?

Answer 6

**Intermediate host**

Develop cysticerci within musculature, eye and brain

Question 7

If a human ingests an egg of this tiny tapeworm from the feces of a dog, a unilocular cyst will form in the liver, lung or rain of a human.

Answer 7

Echinococcus granulosus

Question 8

If a human ingests an egg of this tiny tapeworm from the feces of a cat or a fox, this will produces thousands of multilocular cysts in the liver, lungs or brain (can metastasize much like cancer).

Answer 8

Echinococcus multilocularis

Question 9

If a human ingests a plerocercoid from the muscle of a poorly cooked fis, the plerocercoid will develop into an adult tapeworm within the intestine of the human. Name this tapeworm.

Answer 9

Diphyllobothrium latum

Question 10

What is the zoonotic disease that toxocara canis, cati and toxascaris leonina produces?

Answer 10

Visceral larva migrans

Question 11

What is the zoonotic disease that is produced by ancylostoma caninum, tubaeforme, and braziliense?

Answer 11

Cutaneous larva migrans

Question 12

WIWPHTH - Paragonimus kelllicotti

Answer 12

Produces inflammation

Question 13

WIWPHTH - Dipylidium caninum

Answer 13

Produces inflammation/irritation

Question 14

WIWPHTH - Schistosome cercarial dermatitis

Answer 14

Allergic reaction

Question 15

WIWPHTH - Taenia saginata, cysticercus bovis

Answer 15

Produces inflammation

Question 16

WIWPHTH - Taenia solium, cysticercus cellulosae

Answer 16

Produces inflammation

Question 17

WIWPHTH - Echinococcus granulosus

Answer 17

Produces hydatid cyst

Question 18

WIWPHTH - Echinococcus multilocularis

Answer 18

Produces hydatid cysts

Question 19

WIWPHTH - Diphyllobothrium latum

Answer 19

Competes with host for nutrients

Question 20

WIWPHTH - Spirometra mansonoides

Answer 20

Eats solid tissue

Question 21

WIWPHTH - Toxocara canis, cati and toxascaris leonina

Answer 21

Mechanical obstruction of intestine

Question 22

WIWPHTH - Ancylostoma caninum, tubaeforme, braziliense

Answer 22

Bloodfeeders, produce anti-coagulants