Why Is Enterobius Vermicularis Called Seatworm?


Major zoonotic nematodes

The major intestinal nematodes among Koreans were Ascaris lumbricoides (roundworm), Enterobius vermicularis (pinworm), hookworms, Trichuris trichiura (whipworm), Trichostrongylus orientalis, and Strongyloides stercoralis.

Why is Enterobius vermicularis least diagnosed by stool examination?

Stool examination is not helpful in the diagnosis of E. vermicularis as they are only occasionally excreted in the stool usually. Sometimes analysis of the stool specimen is recommended to rule out other causes.

How is enterobius Vermicularis treated?

The medications used for the treatment of pinworm are either mebendazole, pyrantel pamoate, or albendazole. Any of these drugs are given in one dose initially, and then another single dose of the same drug two weeks later. Pyrantel pamoate is available without prescription.

Can stool test detect pinworms?

An infected person who has scratched the anal area may have picked up some pinworm eggs under the nails that could be used for diagnosis. Since pinworm eggs and worms are often sparse in stool, examining stool samples is not recommended. Serologic tests are not available for diagnosing pinworm infections.

What disease does pinworms cause?

Pinworm infection (called enterobiasis or oxyuriasis) causes itching around the anus which can lead to difficulty sleeping and restlessness. Symptoms are caused by the female pinworm laying her eggs.

How common is enterobius Vermicularis?

Enterobius vermicularis (pinworms) is one of the most common human parasitic helminths and by one estimation, about 200 million people worldwide are supposedly infected, with children aged 5~10 years old accounting for over 30% of cases .

What disease is caused by enterobius Vermicularis?

Pinworm infection is caused by a small, thin, white roundworm called Enterobius vermicularis. Although pinworom infection can affect all people, it most commonly occurs among children, institutionalized persons, and household members of persons with pinworm infection.

What is Autoinfection in parasite?

Auto-infection is a life history strategy used by many parasitic organisms, including digenetic trematodes. The process of autoinfection most frequently involves the transfer of a life cycle stage of the parasite from one site to another inside the same host, usually accompanied by morphological transformation.

How do you test for pinworms at home?

Pinworm test

  1. Firmly press the sticky side of a 1-inch (2.5 centimeters) strip of cellophane tape over the anal area for a few seconds. The eggs stick to the tape.
  2. The tape is then transferred to a glass slide, sticky side down. …
  3. Wash your hands well.
  4. Take the bag to your health care provider.

What are the symptoms of enterobius infections?

What are the symptoms of a pinworm infection?

  • frequent and strong itching of the anal area.
  • restless sleep due to anal itching and discomfort.
  • pain, rash, or other skin irritation around the anus.
  • the presence of pinworms in the area of your child’s anus.
  • the presence of pinworms in stools.

Where do pinworms live naturally?

Pinworms are white, parasitic worms that can live in the large intestine of humans. They are about one-half inch long. While the infected person sleeps, female pinworms leave the intestinal tract and lay their eggs on the skin around the anus.


Are humans the only natural host of pinworms?

Humans are the only natural host of pinworms, and there currently is no confirmed pinworm reservoir.

Are pinworms permanent?

Strict hygiene measures can clear up pinworm infection without medication, and reduce the risk of reinfection. The worm has a lifespan of about six weeks, therefore the strict hygiene needs to last that long.

Can you get pinworms from a toilet seat?

A person is infected with pinworms by ingesting pinworm eggs either directly or indirectly. These eggs are deposited around the anus by the worm and can be carried to common surfaces such as hands, toys, bedding, clothing, and toilet seats.

Why do adults get pinworms?

Accidentally swallowing or breathing in pinworm eggs causes a pinworm infection. The tiny (microscopic) eggs can be carried to your mouth by contaminated food, drink or your fingers. Once swallowed, the eggs hatch in the intestines and mature into adult worms within a few weeks.

How does enterobius Vermicularis Autoinfection occur?

Autoinfection occurs by scratching the perianal area and transferring infective eggs to the mouth with contaminated hands. Person-to-person transmission can occur by eating food touched by contaminated hands or by handling contaminated clothes or bed linens.

Can you get worms in your vag?

A female threadworm can lay thousands of tiny eggs around the anus or vagina. The female threadworm also releases mucus, which can cause an itchy bottom. Scratching the anus or vagina, or wiping them after going to the toilet, can cause the eggs to stick to your fingertips or under your fingernails.

How contagious is pinworms?

What causes pinworm infection? Pinworms are contagious and easily spread, usually from child to child. Pinworm eggs can be picked up on children’s fingers when they’re playing. When children who are infected scratch their itchy bottoms, the tiny eggs can get under their fingernails.

Do adults get pinworm infection?

Pinworms in adults

Adults are less likely to have pinworm infection, except for mothers of infected children. However, adult sexual partners can transfer the eggs to each other. Pinworms also may infect the vagina and urethra.

How do I know if I have pinworms in my stool?

Sighting a worm

Sometimes the worms are visible in the anal area, underwear, or in the toilet. In stools, the worms look like small pieces of white cotton thread. Because of their size and white color, pinworms are difficult to see. The male worm is rarely seen because it remains inside the intestine.

How do I check for pinworms with flashlight?

Pinworm Checks: Check your child for pinworms.

  1. Examine the area around the anus, using a flashlight.
  2. Look for a ¼-inch (6 mm), white, threadlike worm that moves.
  3. Do this a few hours after your child goes to bed. Check him 2 nights in a row. Also, check him first thing in the morning for 2 days.

How do doctors check for pinworms?

The test involves pressing the adhesive side of a piece of transparent tape to the skin around the anus of the person you suspect has pinworms as soon as the person awakens. The eggs stick to the tape. You then take the tape to your appointment so the doctor can look for pinworms or eggs under a microscope.