Widespread Exposure to Mosquitoborne California Serogroup Viruses in Caribou, Arctic Fox, Red Fox, and Polar Bears, Canada

Details

• Alternative Title:
  Emerg Infect Dis
• Personal Author:
  Buhler, Kayla J. ; Dibernardo, Antonia ; Pilfold, Nicholas W. ; Harms, N. Jane ; Fenton, Heather ; Carriere, Suzanne ; Kelly, Allicia ; Schwantje, Helen ; Aguilar, Xavier Fernandez ; Leclerc, Lisa-Marie ; Gouin, Geraldine G. ; Lunn, Nicholas J. ; Richardson, Evan S. ; McGeachy, David ; Bouchard, Émilie ; Ortiz, Adrián Hernández ; Samelius, Gustaf ; Lindsay, L. Robbin ; Drebot, Michael A. ; Gaffney, Patricia ; Leighton, Patrick ; Alisauskas, Ray ; Jenkins, Emily
• Description:
  Northern Canada is warming at 3 times the global rate. Thus, changing diversity and distribution of vectors and pathogens is an increasing health concern. California serogroup (CSG) viruses are mosquitoborne arboviruses; wildlife reservoirs in northern ecosystems have not been identified. We detected CSG virus antibodies in 63% (95% CI 58%-67%) of caribou (n = 517), 4% (95% CI 2%-7%) of Arctic foxes (n = 297), 12% (95% CI 6%-21%) of red foxes (n = 77), and 28% (95% CI 24%-33%) of polar bears (n = 377). Sex, age, and summer temperatures were positively associated with polar bear exposure; location, year, and ecotype were associated with caribou exposure. Exposure was highest in boreal caribou and increased from baseline in polar bears after warmer summers. CSG virus exposure of wildlife is linked to climate change in northern Canada and sustained surveillance could be used to measure human health risks.
• Subjects:
  Animals Animals, Wild Arboviruses Arctic Fox California Serogroup Viruses Canada Caribou Climate Change Ecosystem Encephalitis Virus, California Foxes Humans Jamestown Canyon Virus Polar Bear Red Fox Reindeer Research Rodents Serogroup Snowshoe Hare Virus Ursidae Vector-borne Infections Viruses Widespread Exposure To Mosquitoborne California Serogroup Viruses In Caribou, Arctic Fox, Red Fox, And Polar Bears, Canada Zoonoses

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• Source:
  Emerg Infect Dis. 2023; 29(1):54-63
• Pubmed ID:
  36573538
• Pubmed Central ID:
  PMC9796188
• Document Type:
  Journal Article
• Volume:
  29
• Issue:
  1
• Collection(s):
  Emerging Infectious Diseases
• Main Document Checksum:
  urn:sha256:c2c0ab978e7074fa207ca7abbe41d638f57653f5f7143f0dc32a3896ae0a1951
• Download URL:
  https://stacks.cdc.gov/view/cdc/127615/cdc_127615_DS1.pdf
• File Type:
  [PDF - 865.84 KB ]