2018
DOI: 10.1080/21645515.2017.1423152
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Models for predicting the evolution of influenza to inform vaccine strain selection

Abstract: Influenza vaccine composition is reviewed before every flu season because influenza viruses constantly evolve through antigenic changes. To inform vaccine updates, laboratories that contribute to the World Health Organization Global Influenza Surveillance and Response System monitor the antigenic phenotypes of circulating viruses all year round. Vaccine strains are selected in anticipation of the upcoming influenza season to allow adequate time for production. A mismatch between vaccine strains and predominant… Show more

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Cited by 69 publications
(52 citation statements)
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“…The Influenza virus has a high morbidity and mortality rate, leading to about 3-5 million cases of severe illnesses, up to half a million deaths around the world annually, and accordingly, high economic losses [1]. The World Health Organization (WHO) continuously monitors the viral acts, including both epidemic and pandemic, and decides the strategies to fight with the virus.…”
Section: Introductionmentioning
confidence: 99%
“…The Influenza virus has a high morbidity and mortality rate, leading to about 3-5 million cases of severe illnesses, up to half a million deaths around the world annually, and accordingly, high economic losses [1]. The World Health Organization (WHO) continuously monitors the viral acts, including both epidemic and pandemic, and decides the strategies to fight with the virus.…”
Section: Introductionmentioning
confidence: 99%
“…Periodic adjustment of the Influenza vaccine components is necessary to account for antigenic drift 24 . The flu shot is annually prepared at least six months in advance, and comprises a cocktail of historical strains determined by the WHO via global surveillance 25 , hoping to match the circulating strain(s) in the upcomimg flu season. A variety of hard-to-model effects hinders this prediction, and has limited vaccine effectiveness in recent years 26 .…”
Section: Resultsmentioning
confidence: 99%
“…Forecasting seasonal influenza after 26 weeks was defined as forecasting influenza pattern after six months (26 weeks) with data available only at the current point (S2 Fig). Because of the time-consuming nature of vaccine production, vaccine strategy needs to be prepared at least six months in advance of the upcoming flu season [14]. Three seasons for 2015–2018 were selected to validate the prediction models for seasonal influenza patterns because the four seasonal surveillance data for Australia and Chile from 2011 to 2014 for the training set accounted for 50% of eight seasons in whole data.…”
Section: Methodsmentioning
confidence: 99%