A Third Species of Hypoderma (Diptera: Oestridae) Affecting Cattle and Yaks in China: Molecular and Morphological Evidence

Otranto, Domenico; Traversa, Donato; Colwell, Douglas D.; Guan, Guiquan; Giangaspero, Annunziata; Boulard, Chantal; Yin, Hang

doi:10.1645/ge-232r

Cited by 29 publications

(33 citation statements)

References 17 publications

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“…In the past few years, molecular techniques have been used extensively to gain insights into the taxonomy and systematics of several insects. In particular, hyper‐variable regions within mitochondrial and ribosomal DNA showed to be powerful genetic markers to address diagnostic and taxonomic issues for some myiasis‐causing flies belonging to Calliphoridae and Oestridae families (Stevens & Wall, 2001; Otranto et al ., 2003b, 2004b; Otranto & Traversa, 2004).…”

Section: Introductionmentioning

confidence: 99%

Morphological variability and genetic identity in Rhinoestrus spp. causing horse nasal myiasis

Otranto

Milillo

Traversa

et al. 2005

Medical Vet Entomology

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Larvae of Rhinoestrus purpureus (Brauer) and Rhinoestrus usbekistanicus Gan (Diptera: Oestridae) cause nasal myiases of equids. During a recent epidemiological survey in southern Italy some morphological and taxonomical doubts arose concerning the identification of Rhinoestrus third stage larvae on the basis of the features of the posterior spiracles and the distribution of dorsal spines on the third segment. Four different morphotypes were retrieved: R. usbekistanicus-like, R. purpureus-like and two morphotypes with shared features. The genes encoding for the mitochondrial cytochrome oxidase I (COI) and for the ribosomal subunits 16S and 28S of the four morphotypes of Rhinoestrus were investigated to determine whether they belonged to a single taxon or they displayed genetic differences indicative of more than one species. The three genes showed a very low level of sequence variation (COI 0-0.43%, 16S 0-1.45%, 28S 0-0.23%) falling within the intraspecific ranges previously described for Oestridae species. Finally, the peritreme features and the spinulation of the third segment of the four morphotypes examined could not be used to differentiate the two species.

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Section: Introductionmentioning

confidence: 99%

Morphological variability and genetic identity in Rhinoestrus spp. causing horse nasal myiasis

Otranto

Milillo

Traversa

et al. 2005

Medical Vet Entomology

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“…Infections of humans by the species H. tarandi are very rare and still not clarified to a sufficient degree. Both species (H. bovis and H. Lineatum) can cause infections in humans, and they are distributed in different areas of North America, Europe and Asia (3,4,7,11). The third species that parasitizes in cattle and yaks in China (H. sinense), can also be responsible for cases of infestation among the human population (10).…”

Section: Discussionmentioning

confidence: 99%

“…An eighth species (H. sinense) was described by Pleske (2), and it was long believed that it was a synonym for the species H. lineatum. Otranto used molecular analyses to prove the presence of H. sinense as a separate species that is parasitizing in cattle in China (3).…”

Section: Introductionmentioning

confidence: 99%

Hypodermosis in Northern Serbia (Vojvodina)

Becskei¹,

Ilić²,

Pavlićević³

et al. 2016

Macedonian Veterinary Review

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Case Report Mac Vet Rev 2016; 39 (1): 129-133 This paper describes the first documented case of cattle grub (hypodermosis) in Northern Serbia (Vojvodina). Subcutaneous warbles were determined in a si x year old Simmental cow, at nine places along the spine. After the extirpation of larvae, based on the morphological characterisation, larvae of the third stage of Hypoderma bovis were diagnosed. The cow was administered therapeutic treatment, which had a favorable outcome, with no signs of recurrence. To the authors' best knowledge, the case described in this paper is the first documented case of hypodermosis in cattle in Northern Serbia (Vojvodina). As the climate changed in the past few decades, it is important to pursue detailed investigations of the prevalence of this parasitic myiasis, as there are few such literature data for the Southern region of Serbia. One should also not ignore the fact that species of the genus Hypoderma can cause myiasis in humans as well.

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“…According to Haine et al ., 19 the herd seroprevalence to Hypoderma spp., among 390 animals, was 48.7% in Belgium. Cattle hypodermosis in China reaches 98% of the animals and maximum intensities exceed 400 warbles for each animal 58 …”

Section: Hypodermosismentioning

confidence: 99%

Myiasis as a risk factor for prion diseases in humans

Lupi

2006

Acad Dermatol Venereol

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Prion diseases are transmissible spongiform encephalopathies of humans and animals. The oral route is clearly associated with some prion diseases, according to the dissemination of bovine spongiform encephalopathy (BSE or mad cow disease) in cattle and kuru in humans. However, other prion diseases such as scrapie (in sheep) and chronic wasting disease (CWD) (in cervids) cannot be explained in this way and are probably more associated with a pattern of horizontal transmission in both domestic and wild animals. The skin and mucous membranes are a potential target for prion infections because keratinocytes and lymphocytes are susceptible to the abnormal infective isoform of the prion protein. Iatrogenic transmission of Creutzfeldt-Jakob disease (CJD) was also recognized after corneal transplants in humans and scrapie was successfully transmitted to mice after ocular instillation of infected brain tissue, confirming that these new routes could also be important in prion infections. Some ectoparasites have been proven to harbour prion rods in laboratory experiments. Prion rods were identified in both fly larvae and pupae; adult flies are also able to express prion proteins. The most common causes of myiasis in cattle and sheep, closely related animals with previous prion infections, are Hypoderma bovis and Oestrus ovis, respectively. Both species of flies present a life cycle very different from human myiasis, as they have a long contact with neurological structures, such as spinal canal and epidural fat, which are potentially rich in prion rods. Ophthalmomyiases in humans is commonly caused by both species of fly larvae worldwide, providing almost direct contact with the central nervous system (CNS). The high expression of the prion protein on the skin and mucosa and the severity of the inflammatory response to the larvae could readily increase the efficiency of transmission of prions in both animals and humans.

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A Third Species of Hypoderma (Diptera: Oestridae) Affecting Cattle and Yaks in China: Molecular and Morphological Evidence

Cited by 29 publications

References 17 publications

Morphological variability and genetic identity in Rhinoestrus spp. causing horse nasal myiasis

Morphological variability and genetic identity in Rhinoestrus spp. causing horse nasal myiasis

Hypodermosis in Northern Serbia (Vojvodina)

Myiasis as a risk factor for prion diseases in humans

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