Oftalmomiasis y miasis nasal por Oestrus ovis en paciente residente en las Islas Canarias con características epidemiológicas poco frecuentes

Fernández, Laura Sante; Hernández-Porto, Miriam; Tinguaro, Valentín; Lecuona, Marı́a

doi:10.1016/j.eimc.2015.10.003

Cited by 14 publications

(1 citation statement)

References 6 publications

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“…The sheep bot fly Oestrus ovis ( Diptera : Oestridae ) is a cosmopolitan and obligate parasite in domestic and wild ruminants, mainly founding sheep and goats and eventually in some wild species [1,2] and humans [3-6]. Oestrosis causes low mortality.…”

Section: Introductionmentioning

confidence: 99%

Oestrus ovis in Ecuador: Importance in the Andean sheep farming

et al. 2019

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Aim: This study aimed to determine the prevalence of Oestrus ovis in sheep meant for meat commercialization in the main slaughterhouse of the country. Materials and Methods: Between October 2015 and December 2015, we assessed the occurrence of Oestrus myiasis in the main slaughterhouse localized in Quito. In total, 80 sheep heads were randomly inspected and necropsied. Larvae were removed from nasal cavities and paranasal sinuses and cleaned. ANOVA (generalized linear model) was used to estimate the relationship between sex, age, and place of origin and presence or absence of parasite larvae. Results: Morphological identification confirmed that 19% (15/80) of the examined animals were positive for Oestrus ovis; from the positive cases, 21% were young animals <12 months old. We found that statistical differences by animal sex, males, were most infested 93% (14/15) than females 7% (1/15). Larvae's L2 were more abundant than other stages (62 of the total 149). 14 of the infested animals were from the Andean places at > 2500 meters above sea level (m.a.s.l.), and only one case from the coastal region at 250 m.a.s.l. with tropical environmental conditions. Conclusion: Our results showed evidence of the presence of myiasis caused by O. ovis in Andean and coastal places in Ecuador and its adaptation to different environmental conditions from that reported previously in temperate regions from Europe and Africa.

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Section: Introductionmentioning

confidence: 99%

Oestrus ovis in Ecuador: Importance in the Andean sheep farming

et al. 2019

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Human ophthalmomyiasis caused by Oestrus ovis—first report from Croatia and review on cases from Mediterranean countries

et al. 2020

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Prevalence of nasopharyngeal myiasis in roe deer (Capreolus capreolus) from an area with high sympatry between wild and domestic ungulates in Central Spain

Martínez-Calabuig,

Panadero,

Varas

et al. 2024

Eur J Wildl Res

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Infestation by the sheep bot fly Oestrus ovis was firstly reported in a single roe deer from Central Spain in 2022. For assessing the current situation of nasal myiases in this ungulate in this area, the nasopharyngeal cavities of 184 roe deer hunted in Central Spain between January-June 2023 were examined. All larvae were recovered and morphologically identified; in addition, species identification was molecularly confirmed in a subset of specimens. Forty-four roe deer (23.9%; CI 95 17.95–30.74) were positive for different Oestrinae larval stages. Twenty-six animals (14.1%; CI 95 9.44–20.02%) were infested by the roe deer nasal bot fly (Cephenemyia stimulator) with a mean intensity of 35.2 (SD 49.71) larvae/infested animal, and eighteen (9.8%; CI 95 5.90-15.02%) roe deer harboured the sheep bot fly (O. ovis), with a mean intensity of 2.0 (SD 1.33) larvae/infested animal. No mixed infestations by both Oestrinae were found in a single animal. All larval instars (L1, L2 and L3) of both species were identified. Most C. stimulator specimens were located at the nasal turbinates, and a small percentage (3.2%) at the pharynx; all O. ovis larvae were found at the nasal turbinates. Since O. ovis is highly prevalent in sheep and goat flocks from Central Spain, the high sympatry between roe deer and small ruminant populations in the studied area may have increased the risk of cross-infection. Moreover, the finding of mature L3 of O. ovis suggests that this species can complete its life cycle in roe deer. Therefore, monitoring bot flies in sheep and goat flocks as well as in sympatric wild ruminants is strongly recommended for achieving an optimum control of nasal myiases.

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Oftalmomiasis y miasis nasal por Oestrus ovis en paciente residente en las Islas Canarias con características epidemiológicas poco frecuentes

Cited by 14 publications

References 6 publications

Oestrus ovis in Ecuador: Importance in the Andean sheep farming

Oestrus ovis in Ecuador: Importance in the Andean sheep farming

Human ophthalmomyiasis caused by Oestrus ovis—first report from Croatia and review on cases from Mediterranean countries

Prevalence of nasopharyngeal myiasis in roe deer (Capreolus capreolus) from an area with high sympatry between wild and domestic ungulates in Central Spain

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