Pinworms are characterized by an oesophagus with a posterior bulb. In gravid females, almost of the entire body is filled with the eggs. Life cycle and transmission enterobius vermicularis is a small nematode which lives in the crypts of the large intestine. Phylum namathelminthes class nematoda advertisements.
Welcome to the enterobius vermicularis parasite site creator information christine yang, 2007, christine. Itis taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. Definition enterobiasis, or pinworm infection as it is commonly called, is an intestinal infection caused by the parasitic roundworm called enterobius vermicularis. Get a printable copy pdf file of the complete article 914k, or click on a page image below to browse page by page. The disease caused by this parasite is known as enterobiasis or oxyuriasis. A enterobiase, enterobiose ou oxiuros e a verminose intestinal devido ao enterobius vermicularis. It has the widest distribution of any parasitic helminth, and it is estimated that approximately 200 million people are infected internationally.
Enterobius vermicularis and hymenolepis nana were detected in 4,1 % of examined samples. L, vermiculus, small worm a common parasitic nematode that resembles a white thread between 0. The most common symptom is itching in the anal area. Other species of pinworm infect horses, mules, zebra, sheep, goat, antelope. Get a printable copy pdf file of the complete article 1. We report a case of the patient with mild voiding difficulties such as urgency, frequency, nocturia, dysuria, mild low back pain or perineal discomfort.
Although it affects all age groups, in most instances, it causes a self. Enterobius vermicularis 1 enterobius vermicularis 2 enterobius vermicularis. Ppt enterobius vermicularis powerpoint presentation. Page designed through the cooperative efforts of interagency itis teams. The pinworm does not cause any serious medical complications and is more of a nuisance than a disease. Full text full text is available as a scanned copy of the original print version. Enterobiasis is a common intestinal parasitic infection of humans caused by enterobius vermicularis e. Additionally, young pinworms may be resistant to drugs. Genus oxyuris species vermicularis oxyuris vermicularis is a nematode endoparasite, inhabiting the caecum, appendix and other parts of large. European journal of obstetrics and gynecology and reproductive biology 107, 2003 pp. Pinworm eggs are spread directly from person to person and infect the intestines. Its terminal mouth is bounded by three lips like structure and a pair of cephahc expansions of cuticle. Pinworm infection is treatable with overthecounter or prescription medication, but reinfection, which occurs easily, should be prevented. Files are available under licenses specified on their description page.
Enterobius vermicularis pinworm eggs, cellulose tape preparation. Enterobius vermicularis name synonyms ascaris vermicularis linnaeus, 1758 homonyms enterobius vermicularis linnaeus, 1758 common names borneorm in danish springmask in swedish bibliographic references 1996 database, nodc taxonomic code. Hosted by the usgs core science analytics and synthesis. The taipei city government, which has undertaken an annual mass pinworm screening and treatment program since 19904. Human pinworm, enterobius vermicularis, is the most common parasitic worm infection in the united states and western europe. More commonly known as the pinworm, enterobius is a common intestinal parasite in humans. This article is part of an expert video encyclopedia. Successful eradication of pinworm infection, also called enterobiasis, requires two doses of medicationan initial dose followed by a subsequent dose two weeks later. Asked 25 sep 2009 by sceptic updated 24 september 2009 topics zyvox, infections, diarrhea, pruritus, pinworm infection enterobius vermicularis, methicillinresistant staphylococcus aureus infection. Also called oxyuris vermicularis, pinworm, seatworm, threadworm. Enterobius vermicularis infection of female genital tract. The nematode roundworm enterobius vermicularis previously oxyuris vermicularis also called human pinworm.
All structured data from the file and property namespaces is available under the creative commons cc0 license. Pinworm eggs have been recovered from a communal latrine near the ancient dead sea settlement of qumran. The cuticle layer protects the nematode so it can invade digestive tracts of animals. Enterobiasis definition of enterobiasis by medical.
Pinworm infection enterobius vermicularis i was on a. The most common symptom of this irritating, but not particularly dangerous, disease is itching around the anal area. For more multimedia, look at enterobius vermicularis on wikimedia commons. Reinfection with e vermicularis immediately after the completion of drug therapy is common. Scientific name enterobius vermicularis common name pinworm historical the common name was derived from the typically slender, sharppointed tails, especially of females. Enterobius vermicularis infection is well controlled among. Enterohius vermicularis oxyuris vermicularis is commonly called human pinworm. The pinworms are one of the most common intestinal nematodes. Enterobiasis definition is infestation with or disease caused by pinworms genus enterobius, especially e. It takes one month from the time you ingest an egg to time that enterobius vermicularis starts laying eggs of its own all over your perianus. The eggs are described as being football shaped with one flattened side. Enterobius vermicularis and dientamoeba fragilis coinfection in four children from ciudad.
The period of time from swallowing eggs to the appearance of new eggs around the anus is 4 to 8 weeks. If you are more interested in larger parasites, then the pinworm is the perfect one for you. Pinworm has the broadest geographic range of any helminth, and is the most prevalent helminth infection in the usa and western europe. Gravid adult female enterobius vermicularis deposit eggs on perianal folds. Enterobius vermicularis enterobius vermicularis is a cosmopolitan parasite that mainly infects preschool and schoolage children. Pinworm infection enterobius vermicularis i was on a strong antibiotic zyvox for mrsa infection. Enterobius vermicularis atlas parasitologia biologia. Infeccion por enterobius vermicularis y su relacion con. Appendix enterobius vermicularis usually more common in temperate climates usually found in appendix of children ages 7 11 years as incidental finding. Adult pinworms inhabit and mate in the cecum of the large intestine and adjacent areas.
The diagnostic test of choice is the scotch tape preparation, since the eggs are commonly found on the perianal area rather than in the stool. While every effort has been made to provide the most reliable and uptodate information available, ultimate legal requirements with respect to species are contained in. Links to pubmed are also available for selected references. Selfinfection occurs by transferring infective eggs to the mouth with hands that have scratched the perianal area. They are cylindrical with a thick surface tegument. Genus oxyuris species vermicularis oxyuris vermicularis is a nematode endoparasite, inhabiting the caecum, appendix and other parts of large intestine. Gastrointestinal infection due to enterobius vermicularis occurs worldwide and is considered to be the most common helminth infection. Infestacion por oxiuros enfermedades infecciosas manual msd.
Animalia nematoda secernetea rhabditida oxyuridae enterobius vermicularis. Enterobius vermicularis physical description as a nematode, enterobius vermicularis has a cylindrical body, and a cuticle with three main outer layers made of collagen and other compounds, secreted by the epidermis. Adults usually have low worm burdens and are asymptomatic. It is a nematode roundworm and a common intestinal parasite or helminth, especially in humans. Enterobius vermicularis, biologia, diagnostico, patologia. The pinworm species enterobius vermicularis, also known as threadworm in the united kingdom and australia or seatworm, is a parasitic worm. It is commonly found in schoolaged children, though it is seen in adults as well. Enterobius vermicularis reino animalia, fillum nematoda, clase rhabditea, orden oxyurata, familia oxyuridae, genero enterobiu s, especie vermicularis conocidos vulgarmente como oxiuros o lombrices intestinales pequenas. A second species, enterobius gregorii, has been described and reported from europe, africa, and asia. May 21, 2008 this page was last edited on 10 march 2017, at 11. Pinworm infection in human is initiated by the ingestion of the infective eggs, which hatch in the intestine, where they develop into the adult worms.
The female worms migrate out the anus depositing eggs on the perianal skin. Enterobius vermicularis, or pinworm, is an itchy but harmless intestinal parasite that has been with humans since before they were human. Pinworm infection, also known as enterobiasis, is a human parasitic disease caused by the pinworm. This is because the chief symptom caused by this parasite is itching around the anal area, which is more.
Gusano pequeno blanco pliegues perianales vagina fisiologia y estructura oxiuro. Here the author describes a case of an asymptomatic patient with enterobius infection as an incidental finding at colonoscopy. Pinworm infection is the most common worm infection in the united states. Pinworms are easily transmitted from human to human and are particularly common in children. However, it is not a legal authority for statutory or regulatory purposes. Enterobius vermicularis small threadlike worm infesting human intestines and rectum especially in children pinworm, threadworm nematode. Universidade do estado do amazonas escola normal superior invertebrados i denize cardoso 1 2. Enterobius vermicularis synonyms, enterobius vermicularis pronunciation, enterobius vermicularis translation, english dictionary definition of enterobius vermicularis. Enterobiasis enterobius vermicularis life cycle of enterobius vermicularis eggs are deposited on perianal folds. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Pinworm is a cosmopolitan parasite with particularly high prevalence in countries with a temperate climate.
The parasite is commonly called as thread worm or pin worm or seat worm. Ppt enterobius vermicularis powerpoint presentation free. Enterobius vermicularis infection of the appendix as a. Oxyuris vermicularis is a nematode endoparasite, inhabiting the caecum, appendix and other parts of large intestine of man. The association of this parasitic infestation with acute appendicitis varies from 0. Jul 17, 2019 reinfection with e vermicularis immediately after the completion of drug therapy is common. Persontoperson transmission can also occur through handling of contaminated clothes or bed linens. Infestacion por oxiuros enfermedades infecciosas manual merck. Enterobius vermicularis is an intestinal nematode of humans. Learn how to pronounce enterobius vermicularis and more about the enterobius vermicularis word at. Enterobius vermicularis by oscar flores ocadiz on prezi. This image is a work of the centers for disease control and prevention, part of the united states department of health and human services, taken or made as part of an employees official duties.