Enterobius vermicularis (pinworm)

Question 1

Enterobius vermicularis is zoonotic (T/F)

Answer 1

FALSE!!!

Enterobius vermicularis is a NON zoonotic nematode

Question 2

What are the host for Enterobius vermicularis?

Answer 2

Humans ONLY

Question 3

Describe the transmission of Enterobius vermicularis?

Answer 3

Fecal-oral ingestion of L3 larvae in environment

Question 4

What are the clinical symptoms of Enterobius vermicularis infection?

Answer 4

-Anal itch (pruritis) - esp at night

Question 5

How does one directly diagnose Enterobius vermicularis infection?

Answer 5

Finding characteristic eggs on the perianal area using a Graham slide (scotch tape)

Question 6

How does one indirectly diagnose Enterobius vermicularis?

Answer 6

-Itchy anus at night

Question 7

How does one control Enterobius vermicularis?

Answer 7

Hygiene and treatment

Question 8

Describe the life cycle of Enterobius vermicularis.

Answer 8

• females migrate to the anus to lay their eggs (female dies releasing more eggs).
• Eggs mature quickly (few hours) into an infective L3 stage in caecum.
• Eggs have a diagnostically identifiable flattened side.
• Prevalent in crowded communities, amongst children and those with poor hygiene.

Question 9

Is there migration with Enterobius vermicularis??

Answer 9

NO MIGRATION!!!!