Enterobiasis-CDCreport

ICD-10 B80
Identification

Pinworm disease

Case classification:
• Suspected Case: A common intestinal helminthic infection that is often asymptomatic. There may be perianal itching, disturbed sleep, irritability and sometimes secondary infection of the scratched skin.
• Probable Case: Other clinical manifestations include vulvovaginitis, salpingitis, and pelvic and liver granulomata. Appendicitis and enuresis have rarely been reported as possible associated conditions.
• Confirmed Case: applying transparent adhesive tape (tape swab or pinworm paddle) to the perianal region and examining the tape or paddle microscopically for eggs; the material is best obtained in the morning before bathing or passage of stools. Examination should be repeated 3 or more times before accepting a negative result. Eggs are sometimes found on microscopic stool and urine examination. Female worms may be found in feces and in the perianal region during rectal or vaginal examinations.

Infectious agent

Enterobius vermicularis, an intestinal nematode.

Occurrence

Worldwide, affecting all socioeconomic classes, with high rates in some areas. It is the most common worm infection in other countries of temperate climate; prevalence is highest in school-age children (in some groups near 50%),. Infection often occurs in more than one family member.