Contagious Ecthyma, Rangiferine Brucellosis, and Lungworm Infection in a Muskox ( Ovibos moschatus ) from the Canadian Arctic, 2014.
An adult male muskox ( Ovibos moschatus ), harvested on 26 August 2014 on Victoria Island, Nunavut, in the Canadian Arctic, had proliferative dermatitis on the muzzle and fetlocks suggestive of contagious ecthyma or orf (Parapoxvirus). Histopathologic features of the lesions were consistent with this diagnosis. Orf virus DNA, phylogenetically similar to an isolate from a captive muskox of the Minnesota Zoo, US, was detected in the lesions by PCR using Parapoxvirus primers. Additionally, there was a metaphyseal abscess with a cortical fistula in the right metacarpus from which Brucella suis biovar 4 was isolated and identification supported by PCR. Brucella spp. antibodies were detected in serum. Finally, 212 nodules were dissected from the lungs. Fecal analysis and lung examination demonstrated co-infection with the lungworms Umingmakstrongylus pallikuukensis and Varestrongylus eleguneniensis. The zoonotic potential of orf and rangiferine brucellosis adds an important public health dimension to this case, particularly given that muskoxen are a valuable source of food for Arctic residents. Careful examination of these pathogens at a population level is needed as they may contribute to muskox population decline and potentially constitute a driver of food insecurity for local communities. This case underscores the importance of wildlife health surveillance as a management tool to conserve wildlife populations and maintain food security in subsistence-oriented communities.
1 Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, Alberta T2N 4Z6, Canada;
Matilde
M
Tomaselli
1 Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, Alberta T2N 4Z6, Canada;
Chimoné
C
Dalton
1 Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, Alberta T2N 4Z6, Canada;|2 Canadian Wildlife Health Cooperative, Alberta Node, Faculty of Veterinary Medicine, University of Calgary, 11877 85th Street NW, Calgary, Alberta T3R 1J3, Canada;
Pádraig J
PJ
Duignan
1 Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, Alberta T2N 4Z6, Canada;|2 Canadian Wildlife Health Cooperative, Alberta Node, Faculty of Veterinary Medicine, University of Calgary, 11877 85th Street NW, Calgary, Alberta T3R 1J3, Canada;
Susan
S
Kutz
1 Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, Alberta T2N 4Z6, Canada;
Frank
F
van der Meer
1 Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, Alberta T2N 4Z6, Canada;
Pratap
P
Kafle
3 Canadian Food Inspection Agency, Ottawa Laboratory Fallowfield, 3851 Fallowfield Road, PO Box 11300, Station H, Nepean, Ontario K2H 8P9, Canada;
Om
O
Surujballi
3 Canadian Food Inspection Agency, Ottawa Laboratory Fallowfield, 3851 Fallowfield Road, PO Box 11300, Station H, Nepean, Ontario K2H 8P9, Canada;
Claude
C
Turcotte
1 Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, Alberta T2N 4Z6, Canada;
Sylvia
S
Checkley
D000818:Animals; D001110:Arctic Regions / Q000453:epidemiology; D002006:Brucellosis / Q000453:epidemiology / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D002170:Canada / Q000453:epidemiology; D004474:Ecthyma, Contagious / Q000453:epidemiology / Q000473:pathology* / Q000821:virology; D008174:Lung Diseases, Parasitic / Q000453:epidemiology / Q000469:parasitology / Q000473:pathology / Q000662:veterinary*; D008297:Male; D009349:Nematode Infections / Q000453:epidemiology / Q000469:parasitology / Q000473:pathology / Q000662:veterinary*; D009923:Orf virus / Q000235:genetics; D010802:Phylogeny; D012418:Ruminants
Brucella suis biovar 4; Parapoxvirus; Protostrongylidae; food safety; food security; public health; wildlife health and disease surveillance; zoonoses