RESUMEN
Pseudomiasis es el término empleado cuando se considera que las larvas y/o huevos de moscas se adquieren accidentalmente per os y atraviesan con inmediatez a lo largo del tracto digestivo. Se documenta un caso de una pseudomiasis intestinal por larvas de Eristalis tenax (Diptera: Syrphidae) en una paciente femenina de 39 años de edad, proveniente de un sector periférico de la ciudad de Coro, estado Falcón, Venezuela. La paciente observó inmediatamente la presencia de la larva viva en sus heces. Aunque refirió sufrir eventualmente de cólicos, al examen físico se presentó normal. La paciente aparentemente no sufre de trastornos mentales, y posee un nivel socioeconómico bajo. El presente trabajo constituye el primer reporte documentado de una pseudomiasis entérica por E. tenax en la zona semiárida del estado Falcón, en la región nor-occidental de Venezuela.
Pseudomyiasis is the term used for the accidental entrapment of swallowed fly maggots and/or eggs immediately passing through the digestive tract. We report a case of intestinal pseudomyasis caused by the larvae of the cosmopolitan drone fly Eristalis tenax (Diptera: Syrphidae) in a 39 year old woman, resident in a suburban sector from Coro city, Falcon state, Venezuela. The patient immediately noticed a living larva in her stool. Although patient referred eventually became colic, her physical examination was normal, with no mental disturbance. She was in a low socioeconomic level. This is the first report of an enteric pseudomyasis by E. tenax in the semiarid zone of Falcon state, in the northwestern region of Venezuela.
Asunto(s)
Humanos , Adulto , Femenino , Miasis/diagnóstico , Miasis/epidemiología , Miasis/etnología , Miasis/microbiología , Miasis/parasitología , Miasis/patología , Miasis/transmisión , Dípteros/parasitología , Enfermedades Parasitarias/etnología , Enfermedades Parasitarias/fisiopatología , Enfermedades Parasitarias/microbiologíaRESUMEN
Se denomina miasis a la patología ocasionada por la infestación de larvas de moscas en el hombre, la cual puede presentar cuadros de gran severidad al producir lesiones cutáneas destructivas e invasivas. Se presenta el caso de una paciente de 30 años de edad, que adquirió la larva de Dermatabia hominis en la zona selvática del departamento de Cusco; además se describe el ciclo biológico del patógeno, las características clínicas de la enfermedad y opciones terapéuticas.
Myiasis is a disease caused by fly larvae infestation in humans, which could be severe, producing destructive and invasive skin lesions. We present the case of a 30 years-old female patient, who got infected by Dermatobia hominis larva in Cusco's jungle area; we also describe the life cycle of the pathogen, the clinical features of disease and treatment options human fly vital cyele, clinical features and treatment options.
Asunto(s)
Humanos , Adulto , Femenino , Miasis/diagnóstico , Miasis/microbiología , Miasis/terapia , Literatura de Revisión como Asunto , PerúRESUMEN
This is a case report of cutaneous myiasis due to Dermatobia hominis in a female physician who had travelled to Belize. Cutaneous myiasis is endemic in Central and South America but is seldom reported from the Caribbean islands.
Éste es un reporte de caso de miasis cutánea debido a Dermatobia hominis en una mujer médico que había viajado a la Belice. La miasis cutánea es endémica en América Central y América del Sur, pero rara vez se reporta en las islas del Caribe.
Asunto(s)
Animales , Femenino , Humanos , Dípteros/patogenicidad , Larva/patogenicidad , Miasis/diagnóstico , Belice , Miasis/microbiología , Miasis/transmisión , Trinidad y Tobago , ViajeRESUMEN
This is a case report of cutaneous myiasis due to Dermatobia hominis in a female physician who had travelled to Belize. Cutaneous myiasis is endemic in Central and South America but is seldom reported from the Caribbean islands.
Asunto(s)
Dípteros/patogenicidad , Larva/patogenicidad , Miasis/diagnóstico , Animales , Belice , Femenino , Humanos , Miasis/microbiología , Miasis/transmisión , Viaje , Trinidad y TobagoRESUMEN
Evaluating tetanus immune status is not yet the usual clinical practice regarding patients with chronic ulcers or myasis. However, of 858 tetanus patients at Hospital Couto Maia (Salvador, Bahia, Brazil) aged 1 year or above, 2 had pressure ulcers and 17 had chronic ulceration of the lower limbs where these skin lesions were the ports of entry for Clostridium tetani. In these 19 cases, the following predisposing factors were described: venous insufficiency (n=6), sickle cell anemia (n=2), Hansen s disease (n=1), malnutrition (n=1), diabetes mellitus (n=1), trauma (n=1) and unknown factors (n=7). In 6 other cases, in addition to the Hansen s disease patient, the port of entry for tetanus was the site of extraction of Tunga penetrans larvae. In these 25 cases, the majority of patients (68) were over 40 years old (17/25) and all of these patients stated that they had either not followed a tetanus toxoid vaccination regimen (19/25), or had partially completed such a regimen, or did not give precise information (6/25). Among the same series studied, over half (52) of the patients died (13/25). We conclude that tetanus prevention must be included in the treatment of chronic skin ulcer patients, vaccination coverage should be increased among older people, and strategies aimed at improving coverage for all age groups must be reviewed.
Asunto(s)
Humanos , Animales , Masculino , Femenino , Lactante , Preescolar , Niño , Adolescente , Adulto , Persona de Mediana Edad , Clostridium tetani , Miasis/microbiología , Úlcera de la Pierna/microbiología , Úlcera por Presión/microbiología , Anciano de 80 o más Años , Anemia de Células Falciformes , Causalidad , Enfermedad Crónica , Insectos , Larva , Lepra , Miasis/parasitología , Tétanos/microbiologíaRESUMEN
Evaluating tetanus immune status is not yet the usual clinical practice regarding patients with chronic ulcers or myasis. However, of 858 tetanus patients at Hospital Couto Maia (Salvador, Bahia, Brazil) aged 1 year or above, 2 had pressure ulcers and 17 had chronic ulceration of the lower limbs where these skin lesions were the ports of entry for Clostridium tetani. In these 19 cases, the following predisposing factors were described: venous insufficiency (n=6), sickle cell anemia (n=2), Hansen s disease (n=1), malnutrition (n=1), diabetes mellitus (n=1), trauma (n=1) and unknown factors (n=7). In 6 other cases, in addition to the Hansen s disease patient, the port of entry for tetanus was the site of extraction of Tunga penetrans larvae. In these 25 cases, the majority of patients (68%) were over 40 years old (17/25) and all of these patients stated that they had either not followed a tetanus toxoid vaccination regimen (19/25), or had partially completed such a regimen, or did not give precise information (6/25). Among the same series studied, over half (52%) of the patients died (13/25). We conclude that tetanus prevention must be included in the treatment of chronic skin ulcer patients, vaccination coverage should be increased among older people, and strategies aimed at improving coverage for all age groups must be reviewed.
Asunto(s)
Clostridium tetani/patogenicidad , Úlcera de la Pierna/microbiología , Miasis/microbiología , Úlcera por Presión/microbiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Anemia de Células Falciformes , Animales , Causalidad , Niño , Preescolar , Enfermedad Crónica , Femenino , Humanos , Lactante , Insectos/crecimiento & desarrollo , Larva , Lepra , Masculino , Persona de Mediana Edad , Miasis/parasitología , Tétanos/microbiologíaRESUMEN
We studied eight different myiasis of sheep caused by screwworm flies under laboratory conditions. Swabs were taken from the wound, before, during, and after the myiasis. Seven hundred and thirty-one samples were streaked on different bacteriological media. All samples were identified by Api System (bioMerieuex). We found thirty-eight different bacterial species in the exudates from the myiasis (before, during, and after the parasitic cycle). The analysis of bacterial flora of the screwworm showed, on larvae stage 1, 10 different bacterial species, on larvae 2, 12 bacterial species; larvae 3, 15 bacterial species; crawl off, 15 bacteria species, pupa, 9 bacterial species; and adults, 2 bacterial species and on the pioneer fly, 14 different bacterial species were isolated and identified.
Asunto(s)
Bacterias/aislamiento & purificación , Dípteros/microbiología , Enterobacteriaceae/aislamiento & purificación , Miasis/microbiología , Animales , Bacterias/clasificación , Dípteros/fisiología , Enterobacteriaceae/clasificación , Exudados y Transudados/microbiología , Femenino , Larva , Oviposición , OvinosRESUMEN
The microflora associated to furuncular lesions, larvae and pupae of Dermatobia hominis, as well as the relationships between parasite, host and microflora associated, as a comprehensive microsystem, has been studied. One hundred and two furuncular myiasis due to D. hominis larvae in several breeds of cattle were studied and the following bacterial species were significant: Staphylococcus aureus, S. epidermidis, S. warneri, Bacillus subtilis and Escherichia coli. Closely related, the microflora associated to 141 samples from first, second, third instar larva and both external surface and larval cavities has been studied. The representative associated microflora to the larvae were: S. aureus, B. subtilis, S. hycus and Moraxella phenylpiruvica, Moerella wisconsiensis, Proteus mirabilis and P. vulgaris, M. phenylpiruvica, M. wisconsiensis, P. mirabilis and P. rettgeri were the representative microflora associated to 64 pupae of D. hominis.
Asunto(s)
Animales , Bovinos , Bacterias , Dípteros , Enfermedades de los Bovinos/microbiología , Forunculosis , Miasis/microbiología , Mataderos , Larva , Pupa , PielRESUMEN
The microflora associated to furuncular lesions, larvae and pupae of Dermatobia hominis, as well as the relationships between parasite, host and microflora associated, as a comprehensive microsystem, has been studied. One hundred and two furuncular myiasis due to D. hominis larvae in several breeds of cattle were studied and the following bacterial species were significant: Staphylococcus aureus, S. epidermidis, S. warneri, Bacillus subtilis and Escherichia coli. Closely related, the microflora associated to 141 samples from first, second, third instar larva and both external surface and larval cavities has been studied. The representative associated microflora to the larvae were: S. aureus, B. subtilis, S. hycus and Moraxella phenylpiruvica, Moerella wisconsiensis, Proteus mirabilis and P. vulgaris, M. phenylpiruvica, M. wisconsiensis, P. mirabilis and P. rettgeri were the representative microflora associated to 64 pupae of D. hominis.
Asunto(s)
Bacterias/aislamiento & purificación , Enfermedades de los Bovinos/microbiología , Dípteros , Forunculosis/microbiología , Miasis/microbiología , Mataderos , Animales , Bovinos , Larva , Pupa , Piel/microbiologíaRESUMEN
Muscina stabulans (Fallém,1917)(Díptera Muscidae), destaca-se entre diversos artrópododes, por sua abundância em locais confinados, devido a acúmulo de fezes por longos períodos. Este trabalho apresenta alguns aspectos de sua biologia, através de coletas realizadas na Granja Capuavinha, município de Monte-Mor, Estado de São Paulo, e da sua posterior colonização em laboratório. Foram realizados vários experimentos em temperatura controlada, onde inicialmente observou-se o rítmo e taxa de eclosão das larvas em 14 diferentes temperaturas (8,10,12,14,16,18,20,22,24,25,26,27,29 e 31ºC.). O desenvolvimento dos estágios imaturos (larva e pupa) foi obsevado e quantificado para a construção de Tabela de Vida em duas diferentes temperaturas constantes-20 e 26ºC e para a determinação da constante térmica da espécie, dada em graus/dia. Os resultados mostram que tanto para a eclosão das larvas, como para todo o desenvolvimento dos estágios imaturos, o tempo de desenvolvimento foi inversamente proporcional a temperatura, mostrando que a espécie pode não estar bem adaptada a temperatura elevadas, A tabela de vida, realizada pelo programa "Life Basic 48", levantou várias taxas importantes, e entre elas destaca-se o Rm, maior a 20ºC que a 26ºC. O cálculo da constante térmica expresso em graus/dia, foi realizado pela linearização da curva obtida em laboratório de 4 temperaturas constantes (16,20,26 e 31ºC), apresentando uma temperatura base padrão de 4.39ºCe K=35.30 GD. e segundo Ricker tb+7.80ºC e K+28.93 GD.