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  • Title: Myiasis of the Tracheostomy Wound Caused by Sarcophaga (Liopygia) argyrostoma (Diptera: Sarcophagidae): Molecular Identification Based on the Mitochondrial Cytochrome c Oxidase I Gene.
    Author: Severini F, Nocita E, Tosini F.
    Journal: J Med Entomol; 2015 Nov; 52(6):1357-60. PubMed ID: 26336248.
    Abstract:
    Wound myiasis is the infestation of open wounds of mammalian hosts caused by larvae of various species of flies. This kind of myiasis can be a serious problem for immobilized patients with open wounds. Here, we identify a dipteran larva found in the tracheostomy wound of a child affected by a severe spinal muscular atrophy. The collected larva was dissected and microscopically analyzed. DNA was extracted from part of the larva and used for the molecular identification. A 487 bp fragment, including part of 5.8 S, the internal transcribed spacer 2 (ITS2), and part of 28S, was amplified using a novel PCR assay to be cloned and sequenced. The barcode region of cytochrome oxidase I (COI) was also cloned and sequenced after PCR amplification. The larva, designated as SASI1, was identified as a third instar of Sarcophaga sp. The COI sequencing confirmed a low similarity with Sarcophaga ruficornis (F.) (95%), yet COI showed a 100% similarity with Sarcophaga argyrostoma (Robineau-Desvoidy, 1830) species. Therefore, SASI1 was identified as a S. argyrostoma larva on the basis of its COI barcode. This is one of the rare cases of myiasis of tracheostomy wound and the first caused by S. argyrostoma.
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