Miíase humana por Alouattamyia baeri (Shannon & Greene) (Diptera, Cuterebridae): comunicação de dois casos na região norte do Brasil

Abstract

<abstract language="eng">The purpose of this paper is to record two peculiar cases of human myiases occurring in Northern Brasil which apparently have not been reported. In both cases maggots of Alouattamyia baeri (Shannon & Greene) (Diptera, Cuterebridae) were localized in the pharyngeal cavity. The first case involved a female Suruí indian, 30 years old, living in the Parque Aripuanã, Rondônia, presenting symptoms of cough, nausea, dyspnea and painful throat. After treatment with Tiabendazol six large maggots were expelled through the mouth. The second case occurred in the state of Amazonas, involving a 45 years old worker of the Manaus-Manacapuru road, km 27. The patient showed, for two weeks, intense cough and throat irritation and after gargle with iodine solution expelled a large maggot. The native hosts of this fly include mainly howler monkeys (Alouatta sp.). The large maggots (22-27 mm) develop in the cervical, upper sternal and axillary regions. An up-to-date list of hosts of A. baeri found in the literature is presented. The material is deposited in the collection of the Museu de Zoologia, Universidade de São Paulo

Myiasis

“…A history of whooping cough with occasional bloody sputum, without fever, and with normal chest auscultation and chest X ray may be the clinical findings. Tracheopulmonary myiasis in humans may be caused by the horse bot fly (7), Alouattamyia baeri (142), Megaselia spicularis (186), cuterebrids (23,72,300), and Gasterophilus sp. (7).…”

“…Another agent for the oral treatment of myiasis is tiabendazole. It has been used for the treatment of immature O. ovis maggots in sheep, and in one case of human myiasis caused by A. baeri, the treatment was successful (142).…”

First Report of Bot Fly (Cuterebra baeri) Infestation in Howler Monkeys (Alouatta palliata) from Mexico

“…Infestations are reported from Mexico (Arroyo et al, 2008), Costa Rica (Zeledó n et al, 1957;Calderó n-Arguedas et al, 2004), Panama (Milton, 1996), French Guiana (DeThoisy et al, 2001, and Brazil (Guimares, 1971), but explicit taxonomic identifications have been conducted only in Costa Rica (Calderó n- Arguedas et al, 2004) and Panamá (Colwell and Milton, 1998). Accurate determination of the species affecting a host is important because the epidemiology and effect on the host can vary dramatically, influencing the effect on populations.…”