Severe alopecia due to demodicosis in roe deer (Capreolus capreolus) in Belgium

Bosschere, H. De; Casaer, Jim; Neukermans, Axel; Baert, Kristof; Ceulemans, T; Tavernier, Paul; Roels, Stefan

doi:10.1016/j.tvjl.2006.10.015

Cited by 16 publications

(19 citation statements)

References 5 publications

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“…By contrast, other authors have apparently not observed alopecia to the same extent as we have, although demodectic mange has been previously reported [90,91]. In our study, alopecia was often associated either with biting lice infestation or else the etiology was unclear.…”

Section: Discussioncontrasting

confidence: 91%

Assessing Fifty Years of General Health Surveillance of Roe Deer in Switzerland: A Retrospective Analysis of Necropsy Reports

et al. 2017

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General wildlife health surveillance is a valuable source of information on the causes of mortality, disease susceptibility and pathology of the investigated hosts and it is considered to be an essential component of early warning systems. However, the representativeness of data from such surveillance programs is known to be limited by numerous biases. The roe deer (Capreolus capreolus capreolus) is the most abundant ungulate and a major game species all over Europe. Yet, internationally available literature on roe deer pathology is scarce. The aims of this study were (1) to provide an overview of the causes of mortality or morbidity observed in roe deer in Switzerland and to assess potential changes in the disease pattern over time; and (2) to evaluate the value and limitations of a long term dataset originating from general wildlife health surveillance. We compiled 1571 necropsy reports of free ranging roe deer examined at the Centre for Fish and Wildlife Health in Switzerland from 1958 to 2014. Descriptive data analysis was performed considering animal metadata, submitter, pathologist in charge, laboratory methods, morphological diagnoses and etiologies. Recurrent causes of mortality and disease pictures included pneumonia, diarrhea, meningoencephalitis, actinomycosis, blunt trauma, predation, neoplasms and anomalies. By contrast, other diagnoses such as fatal parasitic gastritis, suspected alimentary intoxication and reproductive disorders appeared only in earlier time periods. Diseases potentially relevant for other animals or humans such as caseous lymphadenitis (or pseudotuberculosis), salmonellosis, paratuberculosis and listeriosis were sporadically observed. The disease pattern in roe deer from Switzerland was largely in accordance with previous reports. The observed fluctuations were consistent with methodical and/or personnel changes and varying disease awareness. Nevertheless, despite such limitations, the compiled data provide a valuable baseline. To facilitate comparison among studies, we recommend systematically archiving all case documents and fixed tissues and to perform data analyses more regularly and in a harmonized way.

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Section: Discussioncontrasting

confidence: 91%

Assessing Fifty Years of General Health Surveillance of Roe Deer in Switzerland: A Retrospective Analysis of Necropsy Reports

et al. 2017

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“…Generalised demodicosis as a cause of alopecia in this species has been reported in Belgium (De Bosschere and others 2007) and Sweden (Ågren 2009), but has not, to our knowledge, been reported in the UK. Differential diagnoses for alopecia in cervids may include malignant catarrhal fever (Foyle and others 2009), dermatophytosis (Pal and Thapa 1993), sarcoptic mange (Oleaga and others 2008) and possibly debility.…”

mentioning

confidence: 59%

Severe generalised alopecia associated with demodicosis in a roe deer

Strugnell¹,

Woodhouse

Hinde³

et al. 2010

Veterinary Record

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“…4 Immune function is suspected to play a role in the manifestation of clinical demodicosis in numerous species. For instance, the occurrence of this disease in young dogs has been attributed to incomplete immune system development, 8 while Demodex folliculitis infestations occur in older, immunosuppressed humans.…”

Section: Discussionmentioning

confidence: 99%

Demodectic Mange, Dermatophilosis, and Other Parasitic and Bacterial Dermatologic Diseases in Free-Ranging White-tailed Deer (Odocoileus virginianus) in the United States From 1975 to 2012

et al. 2013

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The white-tailed deer (Odocoileus virginianus) is a common and widespread North American game species. To evaluate the incidence, clinical manifestations, demography, and pathology of bacterial and parasitic dermatologic diseases in white-tailed deer in the southeastern United States, we retrospectively evaluated white-tailed deer cases submitted to the Southeastern Cooperative Wildlife Disease Study from 1975 to 2012. Among 2569 deer examined, bacterial or parasitic dermatologic disease was diagnosed in 88 (3.4%) individuals, with Demodex spp (n ¼ 37; 42.0%) and Dermatophilus congolensis (n ¼ 19; 21.6%) as the most common causes. Demodicosis was significantly more common in deer older than 2 years and was most often detected in the fall; no statistically significant sex predilection was identified. Affected animals had patchy to generalized alopecia, often distributed over the head, neck, limbs, and trunk; microscopic lesions included epidermal crusts and cutaneous nodules with mild perifollicular, lymphoplasmacytic inflammation. Dermatophilosis was most common in males younger than 1 year that were often found dead. Crusting, erythema, and alopecia occurred on the face, ears, and distal extremities. Less commonly, infectious dermatologic diseases were associated with other bacteria (n ¼ 13; 14.8%), fungi (n ¼ 5; 5.7%), ectoparasites (chiggers, lice, mites, and ticks; n ¼ 11; 12.5%), and larval nematodes (n ¼ 7; 8.0%). Population-level effects of these diseases in white-tailed deer are likely minimal; however, due to their dramatic presentation, demodicosis, dermatophilosis, and other infectious skin diseases can be of concern to hunters and, in some cases, may have zoonotic potential.

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Severe alopecia due to demodicosis in roe deer (Capreolus capreolus) in Belgium

Cited by 16 publications

References 5 publications

Assessing Fifty Years of General Health Surveillance of Roe Deer in Switzerland: A Retrospective Analysis of Necropsy Reports

Assessing Fifty Years of General Health Surveillance of Roe Deer in Switzerland: A Retrospective Analysis of Necropsy Reports

Severe generalised alopecia associated with demodicosis in a roe deer

Demodectic Mange, Dermatophilosis, and Other Parasitic and Bacterial Dermatologic Diseases in Free-Ranging White-tailed Deer (Odocoileus virginianus) in the United States From 1975 to 2012

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