Oestrus ovisL. (Diptera: Oestridae) Induced Nasal Myiasis in a Dog from Northern Italy

Abstract

A companion dog from Milan province (northern Italy), presenting with frequent and violent sneezing, underwent rhinoscopy, laryngoscopy, and tracheoscopy procedures. During rhinoscopy, a dipteran larva was isolated from the dog and identified as first instar larval stage of O. ovis by morphological features. Reports of O. ovis in domestic carnivores are sporadic and nevertheless this infestion should be considered as a possible differential diagnosis of rhinitis in domestic carnivores living in contaminated areas by the fly as consequence of the presence of sheep and goats. This report described a case of autochthonous infestion in a dog from an area where O. ovis was not historically present but it could be affected by a possible expansion of the fly as a consequence of climate change. This is the first record of Oestrus ovis infestion in a dog in Italy and, at the same time, the most northerly finding of larvae of sheep bot fly in the country.

Rhinomyiasis by Oestrus ovis in a tourist returning from Corsica

“…In the last 20 years, seven sporadic cases of O. ovis have been reported in humans in continental Italy, all with ocular involvement, among which a case in Perugia (Crotti et al 2005), three cases in the province of La Spezia (Dono et al 2005), a case in Ravenna's LidoAdriano (Rivasi et al 2009), one in the city of Bari (Otranto et al 2009), and another in the city of Florence (Zammarchi et al 2014). The northernmost finding of sheep bot fly larvae in Italy was a nasal myiasis in a dog from Milan (Zanzani et al 2016). The same authors reported O. ovis infestation in small ruminants from three provinces located to the north of Milan (Bergamo, Varese, and Brescia) (Zanzani et al 2016).…”

“…The northernmost finding of sheep bot fly larvae in Italy was a nasal myiasis in a dog from Milan (Zanzani et al 2016). The same authors reported O. ovis infestation in small ruminants from three provinces located to the north of Milan (Bergamo, Varese, and Brescia) (Zanzani et al 2016). Many authors have tried to hypothesize how the spreading outside the area of center-southern Italy occurred.…”

FIRST REPORT OF CANINE MYIASIS WITH SHEEP NASAL BOT FLY, Oestrus ovis, IN SLOVENIA

“…Nasal bot fly, Oestrus ovis, causes myasis in small ruminants (1), but other casual hosts, such as humans (7) and carnivores (2)(3)(4)(5)(6)8) have also been reported. The presence of sheep nasal bot flies in Slovenia was recorded in 1997 with a seroprevalence of 40% (13).…”

“…The sheep ectoparasite, Oestrus ovis L. (Linnaeus 1758) is commonly known as nasal bot fly of sheep, goats, and other wild ruminants (1), although infestations of dogs (2,3,4,5,6), humans (7) and a cat (8) have also been documented. It has a worldwide distribution, with a preference to warmer climate, where adult flies can be active year-round (9).…”

Myiasis pada Ruminansia: Diagnosis, Manajemen Terapi dan Pencegahan

“…Kejadian myiasis pada kulit paling sering dijumpai pada ternak dengan manifestasi klinis berupa furunkula, migrasi dan traumatika (Francesconi dan Lupi, 2012). Secara umum, jenis lalat yang menyebabkan myiasis termasuk dalam famili Calliphoridae (Stevens, 2003), Sarcophagidae (Giangaspero et al, 2017), Hypodermatidae (Pavlásek dan Minář, 2014), Oestridae (Zanzani et al, 2016) dan Gasterophilidae (Huang et al, 2016). Sedangkan jenis lalat yang menyebabkan myiasis furunkula adalah Dermatobia hominis (Meurer et al, 2016), Cordylobia anthropophaga (Fujisaki et al, 2008), Wohlfahrtia vigil (Dehghani et al, 2014), dan spesies Cuterebra (Crumley et al, 2011).…”