About: Pandemic (H1N1) 2009 Influenza Community Transmission Was Established in One Australian State When the Virus Was First Identified in North America

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Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	Pandemic (H1N1) 2009 Influenza Community Transmission Was Established in One Australian State When the Virus Was First Identified in North America
Creator	Kelly, Heath Carcione, Dale Glass, Kathryn Fielding, James Grant, Kristina »more»
source	PMC
abstract	BACKGROUND: In mid-June 2009 the State of Victoria in Australia appeared to have the highest notification rate of pandemic (H1N1) 2009 influenza in the world. We hypothesise that this was because community transmission of pandemic influenza was already well established in Victoria at the time testing for the novel virus commenced. In contrast, this was not true for the pandemic in other parts of Australia, including Western Australia (WA). METHODS: We used data from detailed case follow-up of patients with confirmed infection in Victoria and WA to demonstrate the difference in the pandemic curve in two Australian states on opposite sides of the continent. We modelled the pandemic in both states, using a susceptible-infected-removed model with Bayesian inference accounting for imported cases. RESULTS: Epidemic transmission occurred earlier in Victoria and later in WA. Only 5% of the first 100 Victorian cases were not locally acquired and three of these were brothers in one family. By contrast, 53% of the first 102 cases in WA were associated with importation from Victoria. Using plausible model input data, estimation of the effective reproductive number for the Victorian epidemic required us to invoke an earlier date for commencement of transmission to explain the observed data. This was not required in modelling the epidemic in WA. CONCLUSION: Strong circumstantial evidence, supported by modelling, suggests community transmission of pandemic influenza was well established in Victoria, but not in WA, at the time testing for the novel virus commenced in Australia. The virus is likely to have entered Victoria and already become established around the time it was first identified in the US and Mexico.
has issue date	2010-06-28(xsd:dateTime)
bibo:doi	10.1371/journal.pone.0011341
bibo:pmid	20596536
has license	cc-by
sha1sum (hex)	8126e29c1a00af5300f325021430faf4dfecbdc0
schema:url	https://doi.org/10.1371/journal.pone.0011341
resource representing a document's title	Pandemic (H1N1) 2009 Influenza Community Transmission Was Established in One Australian State When the Virus Was First Identified in North America
has PubMed Central identifier	PMC2893203
has PubMed identifier	20596536
schema:publication	PLoS One
resource representing a document's body	covid:8126e29c1a00af5300f325021430faf4dfecbdc0#body_text
is schema:about of	named entity 'NOVEL' named entity 'CONTRAST' named entity 'INCLUDING' named entity 'AUSTRALIA' named entity 'MID' »more»

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