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Journal of Pediatric Surgery Oct 1997Myiasis is the infestation of skin bythe larvae of flies. In North America cases are caused by the botfly (Cuterebra) and occur most commonly in children. The usual...
Myiasis is the infestation of skin bythe larvae of flies. In North America cases are caused by the botfly (Cuterebra) and occur most commonly in children. The usual presentation is a subcutaneous abscess, and for this reason these patients may be referred to surgeons. Knowledge of this entity can avoid delays in diagnosis, unnecessary incision and drainage procedures, and unnecessary courses of antibiotics.
Topics: Abscess; Child; Child, Preschool; Female; Furunculosis; Humans; Male; Myiasis
PubMed: 9349786
DOI: 10.1016/s0022-3468(97)90579-0 -
BMC Veterinary Research Sep 2022In camels, nasopharyngeal myiasis is caused by the larvae of Cephalopina titillator, which parasitize the tissues of nasal and paranasal sinuses, pharynx, and larynx. C....
BACKGROUND
In camels, nasopharyngeal myiasis is caused by the larvae of Cephalopina titillator, which parasitize the tissues of nasal and paranasal sinuses, pharynx, and larynx. C. titillator infestation adversely affects the health of camels and decreases milk and meat production and even death. However, the C. titillator infestation in Bactrian camels has not been widely studied.
METHODS
The present study was conducted to determine the prevalence and risk factors of C. titillator in Bactrian camels of northwestern Xinjiang. Suspected larvae recovered from infested camels were evaluated for C. titillator by microscopy and polymerase chain reaction. Nucleotide sequences of the partial mitochondrial cytochrome c oxidase subunit I (COX1) and cytochrome b (CYTB) genes from the C. titillator of camels were aligned from the NCBI database. Furthermore, the gross and histopathological alterations associated with C. titillator infestation were evaluated via pathological examination.
RESULTS
Of 1263 camels examined 685 (54.2%) camels were infested with suspected C. titillator larvae. Different larval stages were topically detected in the nasal passages and pharynx of the camel heads. Microscopy analysis of the pharyngeal mucosa tissue revealed necrotic tissue debris and some inflammatory cells. Molecular detection of the larval COX1 and CYTB genes indicated that pathogen collected in Bactrian camels was C. titillator. The epidemiological study demonstrated that the prevalence rate of C.titillator infestation was significantly higher in camels of Bestierek Town Pasture (67.2%) and Karamagai Town Pasture (63.6%) compared to Kitagel Town Pasture (38.7%) and Qibal Town Pasture (35.8%) (P < 0.05). No significant difference was observed between the prevalence rates in male (52.6%) and female (54.6%) camels (P > 0.05). The prevalence was higher in warm (64.2%) than that in cold (48.4%) seasons (P < 0.001). The prevalence in camels with non-nomadic method (67.2%) was significantly higher than in animals with nomadic method (47.5%) (P < 0.001). The prevalence of C.titillator infestation was significantly higher in animals of aged 5-10 (60.1%) and aged > 10 (61.1%) years old compared to those of aged < 5 (31.7%) years old camels (P < 0.001).
CONCLUSION
Our results confirm that there is a high prevalence of C. titillator in Bactrian camels from Xinjiang, closely related to age, season, pasture environment, and husbandry methods. Developing prevention, diagnosis, and control programs to prevent transmission is necessary.
Topics: Animals; Camelus; China; Cytochromes b; Diptera; Electron Transport Complex IV; Female; Larva; Male; Myiasis; Prevalence
PubMed: 36171581
DOI: 10.1186/s12917-022-03464-5 -
Medicina 2020Miasis is the infestation of man and animals by larvae of flies belonging to the order Diptera, suborder Cyclorrapha. Eighty percent of miasis in Argentina is caused by...
Miasis is the infestation of man and animals by larvae of flies belonging to the order Diptera, suborder Cyclorrapha. Eighty percent of miasis in Argentina is caused by Cochliomyia hominivorax, a species that induces pronounced tissue invasion and destruction, and results in severe clinical forms. Because of the aggressiveness of its larvae, it is important to reach a specific etiological diagnosis. We present four cases of miasis by C. hominivorax in two patients living in the city of Buenos Aires but working in a rural area and two patients living in the Greater Buenos Aires.
Topics: Aged, 80 and over; Animals; Anti-Bacterial Agents; Antiparasitic Agents; Argentina; Diptera; Female; Humans; Ivermectin; Larva; Male; Middle Aged; Myiasis; Tetanus Toxoid
PubMed: 32282329
DOI: No ID Found -
Medecine Et Sante Tropicales Nov 2018Furuncular myiasis is a cutaneous parasitosis that occurs in tropical regions. It is manifested by lesions with the appearance of pustules, because of the presence of...
Furuncular myiasis is a cutaneous parasitosis that occurs in tropical regions. It is manifested by lesions with the appearance of pustules, because of the presence of the fly larva in the skin. This misleading appearance can delay diagnosis. The extraction of these Cayor worms can be facilitated by the use of a comedo-extractor.
Topics: Aged; Animals; Humans; Larva; Male; Myiasis; Pruritus
PubMed: 30442632
DOI: 10.1684/mst.2018.0826 -
Turkiye Parazitolojii Dergisi Jun 2021Myiasis is a disease caused by tissue invasion of diptera larvae and eggs. Oral myiasis is mostly related to old age, poor oral hygiene, suppurative lesions, anatomical...
Myiasis is a disease caused by tissue invasion of diptera larvae and eggs. Oral myiasis is mostly related to old age, poor oral hygiene, suppurative lesions, anatomical disorders and cancer cases. Oral squamous cell carcinoma (OSCC) is an important risk factor for myiasis. This report presents the case of an 82-year-old woman who presented with gingival myiasis developing on the background of OSSC. The patient was diagnosed with OSSC in the hospital. Myiasis larvae were identified and sent to the National Parasitology Reference Laboratory for identification. Thus, development of myiasis on OSCC background was shown in Turkey for the first time. Myiasis larvae have been identified as the 3rd phase of the larvae . development (Diptera: Sarcophagidae). As a result, myiasis cases are sporadic in Turkey, and it can be avoided by controlling fly population and by paying attention to hygiene. Controlling myiasis is an important public health problem and should be considered in a single health concept, as it causes health problems in both humans and animals. The findings of this case will draw attention to the importance of dealing with myiasis factors, which is a public health problem.
Topics: Aged, 80 and over; Animals; Female; Gingiva; Humans; Larva; Mouth Neoplasms; Myiasis; Risk Factors; Sarcophagidae; Squamous Cell Carcinoma of Head and Neck; Turkey
PubMed: 34103297
DOI: 10.4274/tpd.galenos.2021.7230 -
Parasites & Vectors Jan 2021Feral swine (Sus scrofa) are highly invasive and threaten animal and human health in the Americas. The screwworm (Cochliomyia hominivorax) is listed by the World...
BACKGROUND
Feral swine (Sus scrofa) are highly invasive and threaten animal and human health in the Americas. The screwworm (Cochliomyia hominivorax) is listed by the World Organization for Animal Health as a notifiable infestation because myiasis cases affect livestock, wildlife, and humans in endemic areas, and outbreaks can have major socioeconomic consequences in regions where the screwworm has been eradicated. However, a knowledge gap exists on screwworm infestation of feral swine in South America, where the screwworm is endemic. Here, we report screwworm infestation of feral swine harvested in Artigas Department (Uruguay), where the Republic of Uruguay shares borders with Brazil and Argentina.
METHODS
Myiasis caused by the larvae of screwworm were identified in feral swine with the support and collaboration of members of a local feral swine hunting club over a 3-year period in the Department of Artigas. Harvested feral swine were examined for the presence of lesions where maggots causing the myiasis could be sampled and processed for taxonomic identification. The sites of myiasis on the body of infested feral swine and geospatial data for each case were recorded. The sex and relative size of each feral swine were also recorded. Temperature and precipitation profiles for the region were obtained from public sources.
RESULTS
Myiases caused by screwworms were recorded in 27 of 618 the feral swine harvested. Cases detected in males weighing > 40 kg were associated with wounds that, due to their location, were likely caused by aggressive dominance behavior between adult males. The overall prevalence of screwworm infestation in the harvested feral swine was associated with ambient temperature, but not precipitation. Case numbers peaked in the warmer spring and summer months.
CONCLUSIONS
This is the first report on myiasis in feral swine caused by screwworm in South America. In contrast to myiasis in cattle, which can reach deep into host tissues, screwworms in feral swine tended to cause superficial infestation. The presence of feral swine in screwworm endemic areas represents a challenge to screwworm management in those areas. Screwworm populations maintained by feral swine may contribute to human cases in rural areas of Uruguay, which highlights the importance of the One Health approach to the study of this invasive host species-ectoparasite interaction.
Topics: Animals; Animals, Wild; Calliphoridae; Disease Outbreaks; Female; Humans; Larva; Livestock; Male; One Health; Screw Worm Infection; Seasons; Swine; Uruguay
PubMed: 33413607
DOI: 10.1186/s13071-020-04499-z -
BMJ Case Reports Jan 2021
Topics: Adult; Female; Humans; Hydronephrosis; India; Myiasis; Nephrostomy, Percutaneous
PubMed: 33431436
DOI: 10.1136/bcr-2019-232805 -
BMC Infectious Diseases Dec 2019To enhance awareness of the clinical features and prevention of endotracheal myiasis. (Review)
Review
BACKGROUND
To enhance awareness of the clinical features and prevention of endotracheal myiasis.
CASE PRESENTATION
A case of intratracheal myiasis is reported. A 61-year-old male patient with a history of laryngectomy was admitted to hospital due to tracheostomal hemorrhage of 3 h duration. Intratracheal myiasis was confirmed by bronchoscopy, and the patient underwent bronchoscopic intervention, which was complicated by a tracheal-esophageal fistula and resolved by endotracheal stenting. Twenty months after stent placement, the fistula had not healed.
CONCLUSION
Intratracheal myiasis has serious complications and is difficult to treat. For post-tracheostomy patients, healthcare providers and caregivers should pay attention to the care and monitoring of wounds and maintenance of a tidy, clean living environment to prevent intratracheal myiasis.
Topics: Animals; Bronchoscopy; Cannula; Carcinoma, Squamous Cell; Electrocoagulation; Follow-Up Studies; Humans; Larva; Laryngeal Neoplasms; Laryngectomy; Male; Middle Aged; Myiasis; Stents; Trachea; Tracheoesophageal Fistula; Tracheostomy; Treatment Outcome
PubMed: 31847817
DOI: 10.1186/s12879-019-4679-7 -
Acta Parasitologica Sep 2022The tumbu fly, Cordylobia anthropophaga (Diptera: Calliphoridae), is widely distributed in continental tropical and subtropical Africa, being the most common cause of...
PURPOSE
The tumbu fly, Cordylobia anthropophaga (Diptera: Calliphoridae), is widely distributed in continental tropical and subtropical Africa, being the most common cause of furuncular myiasis in Sub-Saharan Africa. The aim of the present work was to analyze the role of rodents as possible reservoirs of C. anthropophaga in Cape Verde, considering the zoonotic character of this fly species.
MATERIALS AND METHODS
A total of 150 peridomestic rodents were studied in Santiago island. For the obtained larvae, morphological and molecular characters were analyzed.
RESULTS
Cordylobia anthropophaga was found in 6.4% of the peridomestic Rattus rattus analyzed. The present work unveils the presence of C. anthropophaga in rodents of the African archipelago of Cape Verde, introduced probably with West African humans and/or animals.
CONCLUSION
The presence in peridomestic animals, and the wide range of species that this fly can affect, entails a zoonotic risk of myiasis by tumbu fly.
Topics: Animals; Cabo Verde; Calliphoridae; Diptera; Humans; Larva; Myiasis; Rodentia
PubMed: 35687275
DOI: 10.1007/s11686-022-00576-8 -
BMJ Case Reports Aug 2016Orbital myiasis is a potentially destructive infestation of the orbital tissues. It is uncommon in clinical practice and is seen in patients with poor hygiene with... (Review)
Review
Orbital myiasis is a potentially destructive infestation of the orbital tissues. It is uncommon in clinical practice and is seen in patients with poor hygiene with debilitated or immunocompromised state. We report a case of orbital myiasis in an empty socket of an immunocompetent individual. A 65-year-old immunocompetent patient was found to have orbital myiasis in an empty socket status postevisceration, for which he underwent treatment by manual removal of the larvae after application of a suffocating agent, turpentine oil. A total of 12 larvae were removed over the ensuing week. The tissues healed with secondary intention leaving an irregular healthy scar. It was noteworthy that once eviscerated the eye was neglected by the patient. Empty orbital sockets are potential sites for infestations.
Topics: Aged; Animals; Diptera; Humans; Immunocompetence; Male; Myiasis; Orbit Evisceration; Orbital Diseases
PubMed: 27495173
DOI: 10.1136/bcr-2016-215361