Between 16 September and 5 October 2011 rabies was diagnosed in two arctic foxes and eight reindeer in the Svalbard archipelago, in Norway. This outbreak occurs at the end of the reindeer hunting season and poses an increased risk to many people that were involved in the hunt. As of 28 September 2011, 280 people had received post-exposure prophylaxis. No human cases of rabies have occurred.
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http://dx.doi.org/10.2807/ese.16.40.19985-en | DOI Listing |
Emerg Microbes Infect
December 2025
Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China.
The role of farmed animals in the viral spillover from wild animals to humans is of growing importance. Between July and September of 2023 infectious disease outbreaks were reported on six Arctic fox () farms in Shandong and Liaoning provinces, China, which lasted for 2-3 months and resulted in tens to hundreds of fatalities per farm. Severe Fever with Thrombocytopenia Syndrome Virus (SFTSV) was identified in tissue/organ and swab samples from all the 13 foxes collected from these farms.
View Article and Find Full Text PDFVet J
December 2024
College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China. Electronic address:
Immunoglobulins are important components of humoral immunity and play a crucial role in protecting the body from external antigens. The Arctic fox is an important member of furbearer farming, but due to the lack of research on the immune system of the Arctic fox, animal welfare regarding Arctic fox farming has still not received enough attention. In this study, we used the Arctic fox as a research subject, described the gene locus structure of the Arctic fox immunoglobulin germline by genome comparison, and analysed the mechanism of expression diversity of the antibody pool of the Arctic fox by rapid amplification of cDNA 5' ends and high-throughput sequencing.
View Article and Find Full Text PDFGene
January 2025
College of Animal Science and Technology, Hebei Normal University of Science & Technology, Hebei Key Laboratory of Special Animal Germplasm Resources Mining and Innovation, Qinhuangdao, Hebei 066004, China. Electronic address:
Melanocytes, which are mainly found in the epidermis, are responsible for the melanin of skin and hair, and thereby contribute to the appearance of skin and provide protection from damage by ultraviolet radiation. Our previous study revealed that the Wnt5a, one of the many genes that affect melanin production, might be involved in the coat color seasonal change of the Arctic fox by influencing skin melanogenesis. Although the role of Wnt5a in melanocyte lines and melanoma cells has been extensively studied, its role in primary epidermal melanocytes has not been explored.
View Article and Find Full Text PDFJ Anim Ecol
December 2024
Department of Biology, Centre for Biodiversity Dynamics, Norwegian University of Science and Technology, Trondheim, Norway.
Indirect interspecific effects (IIEs) occur when one species affects another through a third intermediary species. Understanding the role of IIEs in population dynamics is key for predicting community-level impacts of environmental change. Yet, empirically teasing apart IIEs from other interactions and population drivers has proven challenging and data-demanding, particularly in species-rich communities.
View Article and Find Full Text PDFNat Commun
September 2024
Department of Zoology, Stockholm University, Stockholm, Sweden.
Inbreeding depression has been documented in various fitness traits in a wide range of species and taxa, however, the mutational basis is not yet well understood. We investigate how putatively deleterious variation influences fitness and is shaped by individual ancestry by re-sequencing complete genomes of 37 individuals in a natural arctic fox (Vulpes lagopus) population subjected to both inbreeding depression and genetic rescue. We find that individuals with high proportion of homozygous loss of function genotypes (LoFs), which are predicted to exert a strong effect on fitness, generally have lower lifetime reproductive success and live shorter lives compared with individuals with lower proportion of LoFs.
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