Epidemiologic, Entomologic, and Virologic Factors of the 2014–15 Ross River Virus Outbreak, Queensland, Australia

Details

• Alternative Title:
  Emerg Infect Dis
• Personal Author:
  Jansen, Cassie C. ; Shivas, Martin A. ; May, Fiona J. ; Pyke, Alyssa T. ; Onn, Michael B. ; Lodo, Kerryn ; Hall-Mendelin, Sonja ; McMahon, Jamie L. ; Montgomery, Brian L. ; Darbro, Jonathan M. ; Doggett, Stephen L. ; van den Hurk, Andrew F.
• Description:
  Australia experienced its largest recorded outbreak of Ross River virus (RRV) during the 2014-15 reporting year, comprising >10,000 reported cases. We investigated epidemiologic, entomologic, and virologic factors that potentially contributed to the scale of the outbreak in Queensland, the state with the highest number of notifications (6,371). Spatial analysis of human cases showed that notifications were geographically widespread. In Brisbane, human case notifications and virus detections in mosquitoes occurred across inland and coastal locations. Viral sequence data demonstrated 2 RRV lineages (northeastern genotypes I and II) were circulating, and a new strain containing 3 unique amino acid changes in the envelope 2 protein was identified. Longitudinal mosquito collections demonstrated unusually high relative abundance of Culex annulirostris and Aedes procax mosquitoes, attributable to extensive freshwater larval habitats caused by early and persistent rainfall during the reporting year. Increased prevalence of these mosquitoes probably contributed to the scale of this outbreak.
• Subjects:
  Aedes Procax Australia Brisbane Culex Annulirostris Culex Orbostiensis Entomology Epidemic Polyarthritis Epidemiologic, Entomologic, And Virologic Factors Of The 2014–15 Ross River Virus Outbreak, Queensland, Australia Epidemiology Mansonia Uniformis Mosquitoes Outbreak Queensland Research Ross River Virus Sequence Analysis Vector-borne Infections Viruses Zoonoses

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• Source:
  Emerg Infect Dis. 25(12):2243-2252
• Pubmed ID:
  31742522
• Pubmed Central ID:
  PMC6874252
• Document Type:
  Journal Article
• Volume:
  25
• Issue:
  12
• Collection(s):
  Emerging Infectious Diseases
• Main Document Checksum:
  urn:sha256:59e67ebd2a4807af237b9740eb0995672e13525ccd20add7324d916adbb1f6d4
• Download URL:
  https://stacks.cdc.gov/view/cdc/83290/cdc_83290_DS1.pdf
• File Type:
  [PDF - 2.81 MB ]