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Wolf (Canis lupus) as canine adenovirus type 1 (CAdV-1) sentinel for the endangered cantabrian brown bear (Ursus arctos arctos). 2022

Alvaro Oleaga, and Ana Balseiro, and Alberto Espí, and Luis J Royo
Sociedad de Servicios del Principado de Asturias S.A. (SERPA), La Laboral, Gijón, Spain.

Canine adenovirus type 1 (CAdV-1) causes infectious canine hepatitis (ICH) and has recently been described as a cause of death among endangered populations of European brown bear (Ursus arctos arctos) in the Cantabrian mountain range in Asturias, Spain. Sympatric wild and domestic carnivores can act as reservoirs of the virus and likely spread it into the environment and subsequently transmit it to brown bears. The present work investigates the prevalence and geo-temporal distribution of CAdV-1 among free-ranging wolves (Canis lupus) in Asturias from 2009 to 2018, during which three fatal cases of ICH were reported among brown bears in the region. A total of 149 wolves were analysed in this study, of which 21 (14%) were found to have CAdV-1 DNA based on real-time polymerase chain reaction (RT-PCR) of spleen samples. Prevalence of the virus was similar between males and females. All but one of the 20 CAdV-1-positive animals of estimable age were younger than 2 years, and only one of the 46 adult animals (>2 years) tested positive. Prevalence was highest in the western area of Asturias and during 2010 and 2011. Our results confirm that CAdV-1 is circulating in Asturian free-ranging wolves, supporting their possible role as virus reservoirs and sentinels in the region of this emerging disease in brown bears.

UI MeSH Term Description Entries
D008297 Male Males
D004283 Dog Diseases Diseases of the domestic dog (Canis familiaris). This term does not include diseases of wild dogs, WOLVES; FOXES; and other Canidae for which the heading CARNIVORA is used. Canine Diseases,Canine Disease,Disease, Canine,Disease, Dog,Diseases, Canine,Diseases, Dog,Dog Disease
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D005260 Female Females
D006516 Adenoviruses, Canine Species of the genus MASTADENOVIRUS that causes fever, edema, vomiting, and diarrhea in dogs and encephalitis in foxes. Epizootics have also been caused in bears, wolves, coyotes, and skunks. The official species name is Canine adenovirus and it contains two serotypes. Canine Adenoviruses,Hepatitis Virus, Infectious Canine,Canine Adenovirus,Canine Infectious Hepatitis Virus,Hepatitis Virus, Canine,Infectious Canine Hepatitis Virus,Canine Hepatitis Virus,Canine Hepatitis Viruses,Hepatitis Viruses, Canine,Viruses, Canine Hepatitis
D006522 Hepatitis, Infectious Canine A contagious disease caused by canine adenovirus (ADENOVIRUSES, CANINE) infecting the LIVER, the EYE, the KIDNEY, and other organs in dogs, other canids, and bears. Symptoms include FEVER; EDEMA; VOMITING; and DIARRHEA. Canine Infectious Hepatitis,Hepatitis, Canine Infectious,Infectious Canine Hepatitis,Canine Hepatitides, Infectious,Canine Hepatitis, Infectious,Canine Infectious Hepatitides,Hepatitides, Canine Infectious,Hepatitides, Infectious Canine,Infectious Canine Hepatitides,Infectious Hepatitides, Canine,Infectious Hepatitis, Canine
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001503 Ursidae The family of carnivorous or omnivorous bears, having massive bodies, coarse heavy fur, relatively short limbs, and almost rudimentary tails. Ailuropoda,Bears,Black Bears,Giant Pandas,Grizzly Bears,Pandas, Giant,Pandas, Greater,Polar Bears,Spectacled Bear,Tremarctos,Ursus,Bear,Bear, Black,Bear, Grizzly,Bear, Polar,Bear, Spectacled,Bears, Black,Bears, Grizzly,Bears, Polar,Bears, Spectacled,Black Bear,Giant Panda,Greater Panda,Greater Pandas,Grizzly Bear,Panda, Giant,Panda, Greater,Polar Bear,Spectacled Bears
D013030 Spain Country located between France on the northeast and Portugal on the west and bordered by the Atlantic Ocean and the Mediterranean Sea. The capital is Madrid. Balearic Islands,Canary Islands
D019596 Wolves Any of several large carnivorous mammals of the family CANIDAE that usually hunt in packs. Canis lupus,Canis rufus,Canis simensis,Ethiopian Wolf,Gray Wolf,Red Wolf,Wolf,Wolf, Ethiopian,Wolf, Gray,Wolf, Red

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