RESUMEN
Abstract Myiopsitta monachus is an invasive psittacine with wide distribution due to the pet trade. Its large communal nests and synanthropic nature contribute to its successful colonization of cities, from where it seems to be expanding in range and numbers. This is relevant with regard to pathogens that invasive species may harbor, especially when host populations thrive. We aimed to identify an abundant mite found in invasive monk parakeet chicks that had been collected in Santiago during 2017 and 2018. Through morphological and molecular identification of the 18S ribosomal RNA gene, we confirmed the presence of Ornithonyssus bursa. This was the first report of this mite in Chile. This mite is common in native and invasive monk parakeet populations and may affect other birds, including domestic fowl. Further, this mite bites people and can be a potential vector of pathogens such as bacteria or viruses. We conclude that this parasite was likely introduced with the parakeet and discuss possible ecological, health and economic consequences of this new potential pest.
Resumo Myiopsitta monachus é um psitacídeo invasor amplamente distribuído devido ao tráfico de animais selvagens. Os grandes ninhos comunitários construídos e sua condição de espécies sinantrópicas contribuem para a colonização bem-sucedida das cidades, onde parece estar expandindo sua distribuição e número de indivíduos. Isso é relevante, quando se trata de patógenos que os invasores podem abrigar, especialmente quando as populações hospedeiras prosperam. O objetivo deste trabalho foi identificar um ácaro abundante, encontrado em filhotes de periquitos-monge introduzidos em Santiago, Chile, coletados durante 2017 e 2018. Por meio da identificação morfológica e molecular do gene do RNA ribossômico 18S, foi confirmada a presença de Ornithonyssus bursa, sendo o primeiro registro para o Chile. Esse ácaro é comum em populações nativas e introduzidas de periquitos-monge e pode afetar outras aves, incluindo aves domésticas. Além disso, esse ácaro pode picar pessoas e pode ser um potencial vetor de patógenos, como bactérias ou vírus. Conclui-se que esse parasita provavelmente foi introduzido com o periquito e foram discutidas as possíveis consequências ecológicas de saúde e econômicas dessa nova praga em potencial.
Asunto(s)
Animales , Loros , Infestaciones por Ácaros/veterinaria , Ácaros , Periquitos , Chile , CiudadesRESUMEN
Abstract Ornithonyssus bursa, known as the "tropical fowl mite", is a hematophagous mite of domestic and wild birds, occasionally biting humans. Infestation on humans occurs mainly when the abandoned nests are close to homes, or by manipulation of infested birds by humans. In Brazil, this species occurs in the south and southeast of the country. In the present study we are reporting bites on humans, new localities records, host associations, and molecular information of O. bursa.
Resumo Ornithonyssus bursa, conhecido como "ácaro tropical de galinha", é um ácaro hematófago de aves domésticas e silvestres, ocasionalmente picando humanos. A infestação em humanos ocorre principalmente quando os ninhos abandonados de aves estão próximos de casas, ou pela manipulação de humanos de aves infestadas. No Brasil, esta espécie ocorre na região sul e sudeste do país. No presente estudo, estamos relatando picadas em humanos, registros de novas localidades de ocorrência, novo hospedeiro e informações moleculares de O. bursa.
Asunto(s)
Humanos , Animales , Dermatitis/parasitología , Infestaciones por Ácaros/parasitología , Ácaros/clasificación , Reacción en Cadena de la Polimerasa , Ácaros/genética , Ácaros/ultraestructuraRESUMEN
Abstract: We herein report human dermatitis caused by the tropical fowl mite Ornithonyssus bursa (Berlese). The cases occurred in an apartment in a residential district of Porto Alegre City, State of Rio Grande do Sul, Brazil, where three members of the same family presented with pruritic lesions on the arms and legs. On inspecting the bathroom, several mites measuring approximately 1.0mm in length were observed coming from a nest of Rufous Hornero, Furnarius rufus (Gmelin). This is the first report of O. bursa in the urban area of Porto Alegre City, from a nest of F. rufus that bites humans.
Asunto(s)
Animales , Femenino , Humanos , Masculino , Dermatitis/parasitología , Infestaciones por Ácaros , Ácaros/clasificación , Estrigiformes/parasitologíaRESUMEN
PURPOSE: The aim of study was to identify the predictors of severe asthma exacerbation with influenza A (H1N1) infection so that intensive care could be initiated immediately. METHODS: Patients were diagnosed influenza A (H1N1), using a real-time reverse transcriptase polymerase chain reaction (RT-PCR) from the nasal aspirates in St. Mary's Medical Center, Busan, Korea, between September, 2009 and February, 2010. Medical records were retrospectively reviewed to collect data. Data were analyzed in two groups by severity of asthma exacerbation. The groups were severe groups and mild-moderate. Statistical analysis was performed by SPSS ver. 12.0. RESULTS: A total of 1,054 children were diagnosed influenza A (H1N1) infection. Of 1,054, 318 (30.1%) were hospitalized. There were 200 boys (62.9%) and median age was 5.0 years (0.1 to 18.0 years). Among hospitalized, 25.2% (80/318) were diagnosed asthma exacerbation. Among 80 patients, 16 (20.0%) were severe group. and 64 (80.0%) were mild-moderate. High leukocyte counts, neutrophil counts, and C-reactive protein (P or =0.05) were not reliable predictors. CONCLUSION: Among who had influenza A (H1N1) infection with asthma-like symptoms, patients who had not been managed asthma before, had high leukocyte, neutrophil, and C-reactive protein in serum, are likely to progress severe asthma exacerbation.