First Record of Human Myiasis Caused by Association of the Species Chrysomya megacephala (Diptera: Calliphoridae), Sarcophaga (Liopygia) ruficornis (Diptera: Sarcophagidae), and Musca domestica (Diptera: Muscidae)

Abstract

We report a rare case of myiasis caused simultaneously by three dipterous species. A 54 yr-old indigent patient was admitted to Andaraí Hospital with painful eruptions on the scalp. The parieto-occipital sulcus showed two lesions caused by scratching associated with deep, odoriferous and exudative pediculosis. Larvae removed with the help of forceps and vaseline produced 153 adults, identified in the laboratory as 114 specimens of Chrysomya megacephala (F., 1794), 38 of Sarcophaga (Liopygia) ruficornis (F., 1794), and one of Musca domestica (L., 1758).

Factors of Susceptibility of Human Myiasis Caused by the New World Screw-Worm,Cochliomyia hominivoraxin São Gonçalo, Rio de Janeiro, Brazil

“…Several species of fly larvae considered obligate or facultative parasites have been reported in different parts of the world by authors such as, Lukin (1989) who recorded 14 cases in 36 months in Brisbane; Kumarasingle et al (2000) found 16 people parasitized over an 18 month period in hospitals in Sri Lanka; Sherman (2000) identified 42 cases over 36 months in the United States; Oliveira et al (2004) recorded 68 cases in 12 months in the Baixada Fluminense (RJ); Nascimento et al (2005) reported 24 cases in 35 months in the city of Recife (PE); Chan et al (2005) reported 8 cases of human myiasis in 12 months in Hong Kong; Marquez et al (2007) identified 71 cases in 48 months in three towns in the state of Rio de Janeiro; and Ferraz et al (2010) recorded a rare case of multiple parasitism with three species of fly larvae causing facultative myiasis in a public hospital in Rio de Janeiro.…”

Effect of juvenoids pyriproxyfen and diofenolan on embryogenesis and postembryonic development of blow fly Chrysomya megacephala (Diptera: Calliphoridae) following egg treatment

“…Chrysomya megacephala (Fabricius) causes myiasis in wild and domesticated animals as well as in humans (Kumarsinghe et al 2000;Ferraz et al 2010). It is also a carrier of many disease-causing microbes, pathogens, cysts, and eggs of parasites to humans (Maldonado and Centeno 2003;Sukontason et al 2007).…”

Myiasis associated with an invasive ductal carcinoma of the left breast: case study

“…Extensive, cavitated, dimpled lesions were observed and many larvae were obtained. The fetid odor emanated from the myiasis and can attract other flies, which re-infest the injury, increasing the severity of the clinical picture and causing extensive tissue destruction and, further, the attraction of other species of Diptera associated with myiasis 19 . It is probable that several instances of oviposition by C. hominivorax occurred in the lesion of the patient because, in addition to the 33 third instar larvae removed, larvae of younger instars were observed at the time of treatment.…”