Etiology
· Humans are infected by ingestion of
embryonated eggs which are usually carried by fingernails, clothing, bedding or
house dust.
· Eggs hatch in the stomach and larvae
migrate to the cecal region where they mature into adult worms.
Clinical manifestation
Nocturnal anal pruritus
and sleeplessnes.
Diagnosis
Detection of eggs by
adhesive cellophane tape pressed against the perianal region early in the
morning. Repeated examination may be needed and worms may be seen in the
stools.
Treatment
- Mebendazole 100mg as one dose and also repeated after 2 weeks
for all ages, or
- Single oral dose of albendazole (400mg PO for all ages) repeated
after 2 weeks.
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