Echinoccocus

Question 1

What is the scientific name of the tapeworm commonly known as the hydatid worm?

Answer 1

Echinococcus granulosus

Question 2

Which species of Echinococcus is known for causing multilocular hydatid disease?

Answer 2

Echinococcus multilocularis

Question 3

True or False: Echinococcus granulosus primarily infects canines.

Answer 3

True

Question 4

What type of life cycle does Echinococcus granulosus have?

Answer 4

Indirect life cycle

Question 5

Fill in the blank: Echinococcus multilocularis primarily affects __________ hosts.

Answer 5

foxes

Question 6

What is the primary mode of transmission for Echinococcus granulosus?

Answer 6

Ingestion of eggs from contaminated food or water

Question 7

True or False: Echinococcus multilocularis can lead to alveolar echinococcosis.

Answer 7

True

Question 8

What is the characteristic feature of cysts formed by Echinococcus granulosus?

Answer 8

Unilocular hydatid cysts

Question 9

Which Echinococcus species has a higher risk of causing severe disease in humans?

Answer 9

Echinococcus multilocularis

Question 10

Multiple choice: What is the primary definitive host for Echinococcus multilocularis? A) Sheep B) Cats C) Foxes D) Dogs

Answer 10

C) Foxes

Question 11

What is the typical size range of Echinococcus granulosus adults?

Answer 11

3 to 6 mm

Question 12

Fill in the blank: The larval stage of Echinococcus multilocularis forms __________ in the liver.

Answer 12

multilocular cysts

Question 13

True or False: Humans can serve as definitive hosts for Echinococcus granulosus.

Answer 13

False

Question 14

What is the primary geographical distribution of Echinococcus granulosus?

Answer 14

Worldwide, especially in areas with livestock

Question 15

Multiple choice: Which of the following is a common intermediate host for Echinococcus granulosus? A) Cattle B) Cats C) Birds D) Mice

Answer 15

A) Cattle

Question 16

What is the primary clinical manifestation of Echinococcus granulosus infection in humans?

Answer 16

Hydatid cyst disease

Question 17

Fill in the blank: Echinococcus multilocularis can cause __________ in the liver, resembling cancer.

Answer 17

alveolar echinococcosis

Question 18

True or False: Echinococcus granulosus is more prevalent in urban areas than rural areas.

Answer 18

False

Question 19

What diagnostic tool is commonly used to identify Echinococcus infections?

Answer 19

Ultrasound

Question 20

Multiple choice: What is a common treatment for Echinococcus infections? A) Antibiotics B) Surgical removal C) Antivirals D) Chemotherapy

Answer 20

B) Surgical removal

Question 21

What is the primary risk factor for Echinococcus multilocularis infection in humans?

Answer 21

Contact with infected fox feces

Question 22

Fill in the blank: Echinococcus multilocularis is most commonly found in __________ regions.

Answer 22

temperate

Question 23

True or False: Echinococcus granulosus can produce multiple cysts in one host.

Answer 23

True

Question 24

What is the role of the intermediate host in the life cycle of Echinococcus species?

Answer 24

To harbor the larval stage

Question 25

Multiple choice: Which of the following hosts is NOT associated with Echinococcus multilocularis? A) Dogs B) Cats C) Foxes D) Humans

Answer 25

A) Dogs

Question 26

What is the main public health concern regarding Echinococcus species?

Answer 26

Zoonotic transmission and severe human disease

Question 27

Fill in the blank: The larvae of Echinococcus granulosus develop into __________ in the liver or lungs of intermediate hosts.

Answer 27

hydatid cysts

Question 28

True or False: Echinococcus multilocularis has a more complex life cycle compared to Echinococcus granulosus.

Answer 28

True

Question 29

What is a key difference in the morphology of cysts between Echinococcus granulosus and Echinococcus multilocularis?

Answer 29

Granulosus has unilocular cysts, multilocularis has multilocular cysts.

Question 30

Multiple choice: Which of the following is a symptom of alveolar echinococcosis? A) Fever B) Abdominal pain C) Jaundice D) All of the above

Answer 30

D) All of the above

Question 31

What type of immune response is typically triggered by Echinococcus infections?

Answer 31

Th2 immune response

Question 32

Fill in the blank: Echinococcus granulosus is often referred to as the __________ tapeworm.

Answer 32

hydatid

Question 33

True or False: Echinococcus multilocularis can be treated effectively with medication alone.

Answer 33

False

Question 34

What is the primary method of prevention for Echinococcus infections?

Answer 34

Hygiene and control of stray dogs