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Large-scale evolutionary surveillance of the 2009 H1N1 influenza A virus using resequencing arrays.


ABSTRACT: In April 2009, a new influenza A (H1N1 2009) virus emerged that rapidly spread around the world. While current variants of this virus have caused widespread disease, particularly in vulnerable groups, there remains the possibility that future variants may cause increased virulence, drug resistance or vaccine escape. Early detection of these virus variants may offer the chance for increased containment and potentially prevention of the virus spread. We have developed and field-tested a resequencing kit that is capable of interrogating all eight segments of the 2009 influenza A(H1N1) virus genome and its variants, with added focus on critical regions such as drug-binding sites, structural components and mutation hotspots. The accompanying base-calling software (EvolSTAR) introduces novel methods that utilize neighbourhood hybridization intensity profiles and substitution bias of probes on the microarray for mutation confirmation and recovery of ambiguous base queries. Our results demonstrate that EvolSTAR is highly accurate and has a much improved call rate. The high throughput and short turn-around time from sample to sequence and analysis results (30 h for 24 samples) makes this kit an efficient large-scale evolutionary biosurveillance tool.

SUBMITTER: Lee CW 

PROVIDER: S-EPMC2874996 | biostudies-literature | 2010 May

REPOSITORIES: biostudies-literature

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Large-scale evolutionary surveillance of the 2009 H1N1 influenza A virus using resequencing arrays.

Lee Charlie Wah Heng CW   Koh Chee Wee CW   Chan Yang Sun YS   Aw Pauline Poh Kim PP   Loh Kuan Hon KH   Han Bing Ling BL   Thien Pei Ling PL   Nai Geraldine Yi Wen GY   Hibberd Martin L ML   Wong Christopher W CW   Sung Wing-Kin WK  

Nucleic acids research 20100225 9


In April 2009, a new influenza A (H1N1 2009) virus emerged that rapidly spread around the world. While current variants of this virus have caused widespread disease, particularly in vulnerable groups, there remains the possibility that future variants may cause increased virulence, drug resistance or vaccine escape. Early detection of these virus variants may offer the chance for increased containment and potentially prevention of the virus spread. We have developed and field-tested a resequenci  ...[more]

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