People become infected, usually unknowingly, by swallowing (ingesting) infective pinworm eggs that are on fingers, under fingernails, or on clothing, bedding, and other contaminated objects and surfaces. Because of their small size, pinworm eggs sometimes can become airborne and ingested while breathing.
Pinworm infections are very common, affecting approximately 1 billion people worldwide. People of all ages can become infected with pinworms, but the infections are found most often in children. Caregivers and family members of infected children have a higher risk of infection.
How common are pinworm infections? This is an easily transmissible infection that is very common in families with small children. Pinworm is the most common worm infection in the United States. Experts estimate that one in ten people throughout the world become infected with pinworms.
Finding the female worm or the eggs confirms the diagnosis of pinworms. To find a female worm: At night, the adult worms can sometimes be seen directly around the anal area or in pajamas. The worm (one-quarter to one-half inch long) is clearly visible to the naked eye.
Other names for this parasite include threadworm and Enterobius vermicularis, or the common term 'worms'. Children are more likely to pick up an infection than an adult, probably because of children's tendency to put their fingers in their mouths.
The life cycle of a pinworm is 4 to 6 weeks. Without treatment, infestation will continue as long as fresh eggs are being swallowed, unless a person develops immunity to pinworms, which is unusual before age 15.
The people most likely to be infected with pinworm are children under 18, people who take care of infected children and people who are institutionalized. In these groups, the prevalence can reach 50%.
Although not all infected people will have symptoms, many will experience itching around the rectum. Some females may also experience itching in the genital area. How soon do symptoms appear? Symptoms usually are noticed one to two months after infection.
Pinworms can rarely migrate into the vagina or urinary tract causing irritation in these regions. Intense itching is again the prominent complaint. This location of infection is less common than the perianal region, and the infection usually goes away on its own.
Your child may be fussy and wake often at night. If your child is infected, it may take 2 to 8 weeks for symptoms to start.
The best way to diagnose this infection is to do a tape test. The best time to do this is in the morning before bathing, because pinworms lay their eggs at night. Steps for the test are: Firmly press the sticky side of a 1-inch (2.5 centimeters) strip of cellophane tape over the anal area for a few seconds.
Pinworm infection is the most common type of intestinal worm infection in the United States and one of the most common worldwide.
Pass it on: Some people are able to ward off parasitic worm infection because they possess a certain protein in their gut mucus that is toxic to worms.
Many people feel embarrassed about having "worms." Pinworm infections can happen to anyone, are spread very easily, and are not related to being unclean. They are especially common in children. They are also easily treated.
If you have pinworms, don't worry. They don't cause any harm (just itching!), and it won't take long to get rid of them. Your doctor will give you some medicine to take right away and then again 2 weeks later to be sure the worms are gone.
Pinworm Infection Symptoms
Most people who are infected don't have symptoms. If you do, they might include: Anal itching, especially at night. Restless sleep.
So many of us or our family members have experienced this relatively mild though distressing infection. Pinworm is the most common worm infection in North America with up to 50% of some groups of school aged children getting infected.
Chlorine dioxide gas inactivates pinworm eggs in a non-invasive and non-corrosive manner.
Most pinworm infections are mild and easily treated. Your doctor may prescribe a single chewable tablet of a medicine called mebendazole. A second tablet is taken about 3 weeks later if the infection isn't cured. Or your doctor may recommend another kind of medicine called pyrantel, which is taken as a single dose.
Pinworms (Enterobius vermicularis) are small, white worms about the length of a staple that live in the rectum of humans. About 20% of children will get pinworms. It is more common in school-age children than pre- schoolers. Adults are rarely affected, except for parents of infected children.
Based on data from the current study, 4–5 seconds of exposure at 80°C appears sufficient to inactivate Ascaris eggs. At 75°C and 70°C treatment may also be effective, but exposure time should be increased to achieve the same level of inactivation.
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.