Enterobius vermicularis
Oxyuriasis belongs to the family of intestinal parasitoses which are very widespread in the world. These diseases are due to the presence of a parasite in the digestive tract. In pinworms, the parasites in question are worms. The solution: appropriate treatment and strict hygiene measures.
Oxyrosis: definition
Pinworm infection is a very common so-called "ubiquitous" parasitosis, particularly in children of school age, caused by a small roundworm called Enterobius vermicularis. These parasites also known as pinworms measure between 4 and 9 millimeters long.
Contamination occurs by ingestion of eggs present in the external environment. Once in the intestine, the eggs hatch under the action of gastric juices and release larvae. The latter will undergo several successive moults before becoming adults. When the mature age is reached, the worms measure approximately 5 millimeters for the males and 10 to 15 millimeters for their female counterparts. Fertilized females migrate to the anus, where they nest to lay their eggs, which has caused anal itching. This process allows networks to self-infect.
This condition is mainly found in children. It is favored by community life (e.g. school, daycare, siblings, etc.)
A know-how ! Before dying a female worm can lay up to 10,000 eggs.
Symptoms
In general, an individual carrying Enterobius vermicularis shows characteristics of an anal pruritus (itching) in the evening or at bedtime. It may be associated with perianal scratching lesions. Injuries, abdominal pain or certain nervous manifestations (eg irritability and nightmares) are caused. In addition, pinworms can sometimes cause appendicitis or cause vulvitis (inflammation of the vulva) or cystitis in little girls. However, asymptomatic carriage (no symptoms) of the infection is also common.
Diagnosis of enterobiasis
The diagnosis of pinworm infection is most often made by the observation of white female worms on the stool. Scotch® test examination can also be used. It consists of putting an adhesive around the anus in order to clean the eggs for the analyzers under the microscope.
Treatment
The drugs used are very effective. They belong to the benzimidazole family (Albendazole, Flubendazole) and can be prescribed either in the form of tablets or in the form of an oral solution.
Due to the parasitic cycle and to avoid reinfestation or self-infestation, a new treatment must be carried out 2 to 3 weeks after the first.
It is advisable to treat all members of the same family or community at the same time. At the same time, it is recommended to follow a few simple hygiene measures to limit the risk of reinfestation, such as:
- Cut nails short and brush them.
- Change bed linen.
- Floor suction.
- Charline D., Pharmacis.