Spirurida
Thelazioidea
First report of Thelazia sp. from a captive Oriental white stork (Ciconia boyciana) in Japan. (1/76)
Nematodes of the genus Thelazia were recovered from the cornea and inferior conjunctival sac of an immature Oriental white stork (Ciconia boyciana). The bird hatched and reared at the Toyooka Oriental White Stork Breeding Center, Hyogo Prefecture, Japan, but died of chlamydiosis. There were neither gross nor histopathologic ophthalmic lesions. The eye worm from a bird is believed to be first reported in Japan. As regarding reintroduction plan for the Oriental white stork, control measures for prevent further infection with the eye worm will be needed. (+info)Gnathostomosis, an emerging foodborne zoonotic disease in Acapulco, Mexico. (2/76)
Between 1993 and 1997, 98 gnathostomosis cases were clinically identified in Acapulco, Mexico. Intermittent cutaneous migratory swellings were the commonest manifestation. Larvae were identified in 26 cases, while in 72, final diagnosis was made on the basis of epidemiologic data, food habits, and positive enzyme-linked immunosorbent assay and Western blot results. (+info)Human Gongylonema infection in a resident of New York City. (3/76)
A case of infection with Gongylonema is described in a 41-year-old woman living in New York City. The patient sought medical attention with the complaint of a sensation of 1-year duration of something moving in her mouth. On two occasions she removed worms from her mouth, once from her lip, once from the gum. One of the specimens submitted for examination was an adult female Gongylonema. It is not possible to say whether the infection was acquired in New York City, or elsewhere, since the patient traveled frequently to Mississippi to visit relatives. As cases of delusional parasitosis continue to increase, clinicians and laboratorians alike need to be alert to the possibility that foreign objects removed from the mouth, or elsewhere, may indeed represent unusual parasitic infections, and that these objects should be examined before being discarded. (+info)Contents of several inorganic substances in European eel infected and uninfected by Anguillicola crassus (Nematoda). (4/76)
The content of 5 macroelements and 5 microelements were analyzed using the atomic absorption method in muscle samples of European eels infected and uninfected by Anguillicola crasus. The mean contents of these substances in infected eels were statistically highly significantly lower in Ca, P, Fe, Mn, but only statistically significantly lower in Na, Mg, Zn and Cu as compared to uninfected fishes. These differences are discussed in relation to hematophagus feeding and pathogenity of the parasite. (+info)Histopathological changes in the swimbladder wall of the European eel Anguilla anguilla due to infections with Anguillicola crassus. (5/76)
The histopathological changes in swimbladders of European eels naturally and experimentally infected with Anguillicola crassus were studied using transmission and scanning electron microscopy. During the course of probably several infections swimbladders undergo characteristic changes. In addition to the thickening of the entire swimbladder wall, and to the folded internal surface of this organ, inflammation, migration of white blood cells, fibrosis and changes in the epithelial cells are frequently seen. Epithelial cells tend to proliferate heavily and form hyperplastic tissues; these processes are accompanied by changes in the internal structure of the cells. The normally cubic cells become spherical or columnar and form folds facing the lumen of the swimbladder. As a consequence, most of these cells lose contact with the blood vessels and show no strict polarity. In heavily affected swimbladders the basal labyrinth of the epithelial cells is reduced, i.e. becomes shorter and less densely packed. The lamina propria shows severe fibrosis with infiltration of white blood cells. Larvae of A. crassus, inhabiting the wall of the swimbladder, were found to be surrounded by cell debris, but this local necrosis does not affect the entire swimbladder in its overall structure. These histological findings can partly explain changes in the gas composition in eels infected with A. crassus. (+info)Effect of salinity on hatching, survival and infectivity of Anguillicola crassus (Nematoda: Dracunculoidea) larvae. (6/76)
The effect of salinity on hatching, larval survival and infectivity of Anguillicola crassus was studied under experimental conditions using eggs obtained from naturally infected eels. Egg hatching rate, second-stage larval survival and larval infectivity were maximal in fresh water and declined with increase in salinity. Larvae survived up to 100 d in fresh water, 70 d in 50 % sea water and 40 d in 100% sea water. Infectivity experiments demonstrated that salinity influenced transmission success throughout the life cycle by decreasing total infectivity of the larval population in utero within female A. crassus and when larvae were free-living in the aquatic environment. Infectivity was age-dependent in relation to salinity. Larvae were infective to intermediate and paratenic hosts for up to 80 d in fresh water, 21 d in 50% sea water and up to 8 d in 100% sea water. The data confirm field observations that infection levels decrease with an increase in salinity. The study contributes to experimental verification of the colonization abilities of A. crassus and supports the hypothesis that A. crassus can be disseminated and transmitted in brackish water. The importance of regular monitoring and stringent hygiene practices in the transportation of eels is emphasized. (+info)Intraocular gnathostomiasis. (7/76)
We report a rare case of intraocular Gnathostomiasis, where a live worm, intracameral in location, was successfully removed. Its identity was confirmed by microscopy. (+info)Evaluation of an ELISA and immunoblotting for studying the humoral immune response in Anguillicola crassus infected European eel Anguilla anguilla. (8/76)
The applicability of an enzyme-linked immunosorbent assay (ELISA) for the detection of anguillicolosis in feral eels was examined using a crude antigen preparation from the body wall of adult Anguillicola crassus. The screening consisted of samples from 100 feral European eels Anguilla anguilla. As a reference the actual status of infection was determined by dissection of the eels' swim-bladders. The ELISA results were compared with a background value calculated from the results obtained from 43 non-infected farm eels. The screened samples had a high prevalence of A. crassus (83 %); however, the specificity and the negative predictive value of the ELISA were low compared to the high positive predictive value. Nonetheless, the reproducibility (precision) of the test was satisfactory, and for the non-infected reference group specificity was 97.7 %. Although the ELISA, as used in the present study, is not applicable for diagnostic purposes, it represents a useful tool for the investigation of the specific humoral immune response of eels against A. crassus under controlled experimental conditions. Immunoblots using crude antigen preparations from different parts of adult A. crassus as well as a crude somatic third-stage (L3) antigen preparation illustrated that only antigens associated with the body wall of adult A. crassus are potentially suitable for diagnostic purposes. Despite the fact that antibodies against Raphidascaris acus cross-reacted with 3 body wall antigens of A. crassus, the most encouraging results were obtained with the antigen preparation from the outer cuticle of adult A. crassus which yielded a conspicuous, broad band at about 100 kDa. (+info)Spirurida infections refer to parasitic diseases caused by roundworms belonging to the order Spirurida. These nematodes have a complex life cycle that involves an intermediate host, usually an arthropod (such as a beetle or a mosquito), and a definitive host, which is a vertebrate animal (including humans).
Humans can become accidentally infected with these parasites through the consumption of raw or undercooked infected meat or fish, or by ingesting contaminated water or soil that contains infective larvae. The most common Spirurida infections in humans are:
1. Gnathostomiasis: Caused by the nematode Gnathostoma spp., which is commonly found in Asia, Central and South America, and Africa. Humans can become infected after consuming raw or undercooked fish, snails, or amphibians that contain infective larvae. The parasite migrates through various tissues, causing symptoms such as skin lesions, abdominal pain, diarrhea, and neurological disorders.
2. Mansonellosis: Caused by the nematodes Mansonella perstans, M. streptocerca, and M. ozzardi, which are transmitted to humans through the bites of infected blackflies or midges. The parasites reside in the connective tissue, causing mild symptoms such as itching, rash, and joint pain.
3. Spirurid infection: Caused by various species of Spirurida nematodes, including Dirofilaria spp., which can infect humans through the bites of infected mosquitoes. The parasites typically reside in the subcutaneous tissue or lungs, causing symptoms such as cough, chest pain, and skin lesions.
Preventive measures for Spirurida infections include avoiding consumption of raw or undercooked meat or fish, practicing good hygiene and sanitation, using insect repellent to prevent mosquito bites, and treating domestic animals for parasitic infections. Treatment options for Spirurida infections depend on the specific species involved and may include anthelmintic drugs such as albendazole or ivermectin.
Spirurida is an order of parasitic roundworms that belong to the class Secernentea. These nematodes are found worldwide and are commonly known to infect a variety of hosts, including reptiles, birds, and mammals. The members of this order have a complex life cycle that involves one or more intermediate hosts.
Spirurid worms vary in size, but most are relatively large and can be seen with the naked eye. They have a long, slender body, and their mouthparts are equipped with cutting plates or teeth. The reproductive system of Spirurida is characterized by the presence of two tubes, known as the vas deferens, that carry sperm from the testes to the seminal vesicle.
Some well-known examples of Spirurida include the heartworm (Dirofilaria immitis), which infects dogs and other animals, and the human whipworm (Trichuris trichiura). These parasites can cause a range of medical conditions, from mild discomfort to severe disease, depending on the species and the number of worms present in the host.
It's worth noting that while Spirurida is a well-defined group of parasitic nematodes, there is ongoing debate among taxonomists about its classification and relationships with other orders within the class Secernentea.
Thelazioidea is not a medical term, but a taxonomic category in the field of biology. It refers to a superfamily of nematodes (roundworms) that includes the genus Thelazia. Members of this superfamily are known as "eyeworms" because they can infect the eyes of various animals, including humans.
Thelazia species are transmitted by flying insects such as flies, which serve as intermediate hosts for the parasites. The adult worms live in the conjunctival sac of the eye and feed on tears, causing symptoms such as eye irritation, tearing, and discharge. In severe cases, they can cause corneal ulcers or blindness.
While it is important for medical professionals to be aware of the existence of Thelazia species and other eyeworms, a specific medical definition of Thelazioidea does not exist.
Onchocerca is a genus of filarial nematode worms that are the causative agents of onchocerciasis, also known as river blindness. The most common species to infect humans is Onchocerca volvulus. These parasites are transmitted through the bite of infected blackflies (Simulium spp.) that breed in fast-flowing rivers and streams.
The adult female worms live in nodules beneath the skin, while the microfilariae, which are released by the females, migrate throughout various tissues, including the eyes, where they can cause inflammation and scarring, potentially leading to blindness if left untreated. The infection is primarily found in Africa, with some foci in Central and South America. Onchocerciasis is considered a neglected tropical disease by the World Health Organization (WHO).
Onchocerca lupi
Spirurida
List of diseases (S)
Nematode infection in dogs
Epaulette shark
List of MeSH codes (C03)
Rosenberg's monitor
Gongylonema pulchrum
Pterygodermatites peromysci
Oesophagostomum
Elaeophora bohmi
Acanthocheilonema
Thelaziasis
Setaria (nematode)
Elaeophora elaphi
Cystidicoloides tenuissima
Gongylonema ingluvicola
Hedruris spinigera
Spirocerca lupi
Dirofilaria immitis
Mansonella streptocerca
Dirofilaria repens
Wuchereria bancrofti
Thelazia
Placentonema gigantissima
Setaria cervi
Tropical pulmonary eosinophilia
Physaloptera
Mansonella perstans
Onchocerca tubingensis
First reports of autochthonous eyeworm infection by Thelazia callipaeda (Spirurida, Thelaziidae) in dogs and cat from France
Case report: First evidence of human zoonotic infection by Onchocerca lupi (Spirurida, Onchocercidae) - PubMed
First reports of autochthonous eyeworm infection by Thelazia callipaeda (Spirurida, Thelaziidae) in dogs and cat from France -...
Onchocerca lupi - Wikipedia
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Ophthalmologic Manifestations of Onchocerciasis Differential Diagnoses
Human Thelaziosis Caused by Thelazia callipaeda Eyeworm, Hungary - Volume 28, Number 12-December 2022 - Emerging Infectious...
Changes of liver functions after albendazole treatment in human gnathostomiasis - PubMed
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Human Thelaziosis Caused by Thelazia callipaeda Eyeworm, Hungary - Volume 28, Number 12-December 2022 - Emerging Infectious...
Mehdi GOLESTANINASAB | Professor (Assistant) | PhD | Semnan University, Semnān | Research profile
Spondylometaphyseal Dysplasia Type Kozlowski (SMD Kozlowski): Symptoms, Diagnosis and Treatment - Symptoma
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New reports of helminthes in captive exotic psittacine birds in Chile
Fish-borne parasites proficient in zoonotic diseases: a mini review
Volume 53 (2016): Issue 1 (March 2016)
Morphological and molecular identification of Parabronema skrjabini of camels (Camelus dromedary) in Najaf province
Eradication of dracunculiasis - WikiProjectMed
Mechanical transfer of Theileria orientalis: possible roles of biting arthropods, colostrum and husbandry practices in disease...
Onchocercidae6
- First evidence of human zoonotic infection by Onchocerca lupi (Spirurida, Onchocercidae). (wikipedia.org)
- Human ocular onchocerciasis caused by Onchocerca lupi (Spirurida, Onchocercidae) in Iran. (wikipedia.org)
- Onchocerca lupi (Spirurida, Onchocercidae) is a nematode that infects the ocular tissues of dogs and humans. (unl.pt)
- Cercopithifilaria bainae and Cercopithifilaria grassii (Spirurida, Onchocercidae) are filarioids inhabiting the skin of dogs worldwide. (unl.pt)
- Mansonella ozzardi (Spirurida: Onchocercidae) is a filarial nematode found in South and Central America as well as some Caribbean Islands. (bvsalud.org)
- Passage of ingested Mansonella ozzardi (Spirurida: Onchocercidae) microfilariae through the midgut of Aedes aegypti mosquitoes (Diptera: Culicidae). (ajtmh.org)
Nematode3
- As an example, the intestinal nematode Heligmosomoides polygyrus produces a TGF- β mimic during its invasive stages causing the induction of regulatory T cells (Tregs) in mice [ 9 ], a T cell subset that controls immunity in infection, allergy, and autoimmunity [ 10 ]. (hindawi.com)
- Dracunculiasis is an infection caused by the nematode Dracunculus medinensis, also known as the guinea worm. (medscape.com)
- Nematode biology and larval development of Thelazia callipaeda (Spirurida, Thelaziidae) in the drosophilid intermediate host in Europe and China. (uniba.it)
Thelaziidae2
- Spirurida , Thelaziidae) are vectorborne zoonotic nematodes that can parasitize conjunctiva and surrounding structures of wild and domestic animals as well as humans ( 1 ). (cdc.gov)
- The first cases of infection with the eyeworm Thelazia callipaeda (Spirurida, Thelaziidae) in red foxes (Vulpes vulpes) from Portugal are described. (unl.pt)
Callipaeda3
Microfilariae1
- Dual host infections: enhanced infectivity of eastern equine encephalitis virus to Aedes mosquitoes mediated by Brugia microfilariae. (ajtmh.org)
Onchocerca3
- Onchocerca lupi infection in Turkey: a unique case of a rare human parasite. (wikipedia.org)
- Zoonotic Onchocerca lupi infection in a 22-month-old child in Arizona: first report in the United States and a review of the literature. (wikipedia.org)
- Infection with nematodes of the genus ONCHOCERCA. (umassmed.edu)
Parasitic6
- Here, we reviewed the recent advances from the laboratory mouse about macrophage origin, polarization, activation, and effector functions during parasitic helminth infection. (hindawi.com)
- Parasitic helminths generally induce strong type 2 immunity that normally controls parasite infection and is characterized by production of type 2 cytokines like interleukin- (IL-) 4, IL-5, and IL-13 by innate cells (group 2 innate lymphoid cells (ILC2s), basophils, eosinophils, neutrophils, and macrophages) and CD4 + T helper 2 (Th2) lymphocytes. (hindawi.com)
- An important aspect about type 2 cell-mediated responses against parasitic helminths is that they are induced for controlling parasite infection but they also mediate the tolerance of parasite persistence [ 1 ]. (hindawi.com)
- Pinworm infection ( threadworm infection in the UK), also known as enterobiasis , is a human parasitic disease caused by the pinworm . (wikipedia.org)
- Parasitic infections are widespread among reptiles and may cause serious problems. (cabi.org)
- Parasitic infections can pose a serious threat to pet reptiles and amphibians and are a common finding in these exotic pets. (cabi.org)
Larvae1
- The larvae are subsequently released in the stomach or small intestine and penetrate the mucosa to mate and mature in the abdomen or retroperitoneal space approximately 60-90 days after initial infection. (medscape.com)
Zoonotic2
- Human Cases The number of reported human zoonotic O. lupi infections is increasing. (wikipedia.org)
- In addition, infection with larval stages of Taeniids remains an important zoonotic problem. (hindawi.com)
Rhabditida4
- Rhabditida Infections" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (harvard.edu)
- Infections with nematodes of the order RHABDITIDA. (harvard.edu)
- This graph shows the total number of publications written about "Rhabditida Infections" by people in Harvard Catalyst Profiles by year, and whether "Rhabditida Infections" was a major or minor topic of these publication. (harvard.edu)
- Below are the most recent publications written about "Rhabditida Infections" by people in Profiles. (harvard.edu)
Mammals1
- Type 2 cell-mediated immunity is a general feature of helminth infection regardless of the multivariate sites of colonization of the numerous helminth species [ 11 ] and is conserved from jawed fish to mammals [ 7 ]. (hindawi.com)
Helminth3
- Helminth infections induce strong type 2 cell-mediated immune responses, characterized among other things by production of high levels of interleukin- (IL-) 4 and IL-13. (hindawi.com)
- We can take advantage of a variety of helminth models available, each of which have their own feature including life cycle, site of infection, or pathological mechanisms influencing macrophage biology. (hindawi.com)
- Studies on mouse models of helminth infections have provided essential findings towards understanding type 2 immunity induction as well as its effector functions [ 12 ]. (hindawi.com)
Species4
- Detection of D. repens is described in a dog from Portugal, a finding that simultaneously represents the first presumable case of autochthonous infection with the parasite in any animal host species in the country. (unl.pt)
- Blood parasite infections in strigiformes and psittaciformes species in captivity with a new record of potential fatal blood parasite transmission to parrots. (cabi.org)
- Although parrot species are infrequently infected by hemoparasites in the wild, some fatal infections have been reported in captive individuals. (cabi.org)
- This species forms nodules with a self-limiting nature, but severe infections cause considerable economic losses due to condemnation of carcasses [ 12 ]. (biomedcentral.com)
Parasites1
- Wearing shoes in areas where these parasites are known to be endemic offers protection from infection. (mdwiki.org)
Parasite infection1
- Dedić N., Vete n k L. & Vete n kov imkov A. (2023): Monogeneans in intergeneric hybrids of leuciscid fish: Is parasite infection driven by hybrid heterosis, genetic incompatibilities, or host-parasite coevolutionary interactions? (muni.cz)
Endemic1
- The earliest reported endemic infection in Europe was detected in a dog in the Piedmont region of Italy in 1989. (cdc.gov)
Dirofilaria1
- Dirofilaria repens causes subcutaneous infection in dogs and cats, and is the main agent of human dirofilariosis in Europe. (unl.pt)
Commonly occur2
- Pinworm infections commonly occur in all parts of the world. (wikipedia.org)
- The main symptom is itchy papules (raised skin) that commonly occur within 2 days of infection. (wikipedia.org)
Secondary4
- [14] The itching leads to continuously scratching the area around the anus, which can further result in tearing of the skin and complications such as secondary bacterial infections , including bacterial skin inflammation , and hair follicle inflammation . (wikipedia.org)
- To describe the design of IAL-2 and correlate the results of RT-qPCR tests for COVID-19 with secondary data on suspected cases of SARS-CoV-2 infection in the São Paulo state.Methodology. (bvsalud.org)
- This is a retrospective study based on the analysis of secondary data from patients suspected of infection by SARS-CoV-2 whose clinical samples were submitted to real-time PCR after reverse transcription (RT-qPCR) at IAL-2, between 1 April 2020 and 8 March 2022. (bvsalud.org)
- [4] The itching can become very painful and if scratched may allow a secondary bacterial infection to develop. (mdwiki.org)
Severe1
- Infection can lead to chronic skin disease, severe itching, and eye lesions that can progress to complete blindness. (medscape.com)
Chronic1
- Such evolution may be explained by different phenomena, the most evident being that many helminths undertake specific multiorgan migratory trajectories before reaching their final destination such as the lung, intestine, liver, or blood vessels where they can persist and cause chronic infections. (hindawi.com)
Article1
- This article is about the human infection with pinworms. (wikipedia.org)
Biology1
- The Taxonomy study combines topics in areas such as Evolutionary biology, DNA barcoding and Spirurida. (research.com)
Stages1
- Treatment of this infection in humans is primarily the mechanical removal of worms, which is more difficult in their immature stages ( 7 ). (cdc.gov)
Worms2
- Dead female worms have also been found in Egyptian mummies older than 3000 years, and writings in ancient Sanskrit, Greek, and Hebrew refer to Dracunculus infection. (medscape.com)
- The exact locality of adult worms in the human body remains a mystery, but during experimental infections in Erythrocebus patas monkeys the worms were detected in the subcutaneous tissue (Orihel & Eberhard, 1982). (bvsalud.org)
Cases1
- In the first reported case from USA, the infection site was unusual from all the previous cases and was found in a cervical spine of a 22-month-old girl. (wikipedia.org)
Human1
- In some areas dogs have been prohibited from beaches in an attempt to control human infection. (mdwiki.org)
Europe1
- [1] [5] They are the most common type of worm infection in Western Europe , Northern Europe and the United States . (wikipedia.org)
Case1
- The first case of infection of a red fox (Vulpes vulpes) with the filarioid Cercopithifilaria sp. (unl.pt)
People2
- There are approximately 123 million people at risk for infection in 38 countries and at least 25.7 million people infected. (medscape.com)
- 120 million people are at risk for infection on this continent. (medscape.com)
South1
- From April 2016 to March 2017 dromedary camels ( n = 456) were inspected for infection with O. fasciata in a slaughterhouse in Kerman (south of Iran). (biomedcentral.com)
Individuals1
- One-third of individuals with pinworm infection are totally asymptomatic . (wikipedia.org)
High1
- In West African savanna, the rate of infection has been as high as 80%-100% by age 20 years, with blindness peaking at age 40-50 years. (medscape.com)
Analysis1
- Vete n kov imkov A., Civ ov K ov K., Vo kov K., Vete n k L., Hejret V., Gettov L., Vorel J., Reslov N. & Bystr V. (2024): Heterosis versus breakdown in cyprinid hybrids associated with SVCV infection revealed by transcriptome profile analysis of head kidney. (muni.cz)