Epidemiologic, Entomologic, and Virologic Factors of the 2014-15 Ross River Virus Outbreak, Queensland, Australia.
Aedes procax
Australia
Brisbane
Culex annulirostris
Culex orbostiensis
Mansonia uniformis
Queensland
Ross River virus
entomology
epidemic polyarthritis
epidemiology
mosquitoes
outbreak
sequence analysis
vector-borne infections
viruses
zoonoses
Journal
Emerging infectious diseases
ISSN: 1080-6059
Titre abrégé: Emerg Infect Dis
Pays: United States
ID NLM: 9508155
Informations de publication
Date de publication:
12 2019
12 2019
Historique:
pmc-release:
01
12
2019
entrez:
20
11
2019
pubmed:
20
11
2019
medline:
14
4
2020
Statut:
ppublish
Résumé
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.
Identifiants
pubmed: 31742522
doi: 10.3201/eid2512.181810
pmc: PMC6874252
doi:
Types de publication
Historical Article
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
2243-2252Références
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