Emergence of a new recombinant Sydney 2012 norovirus variant in Denmark, 26 December 2012 to 22 March 2013.
نویسندگان
چکیده
We report here new recombinants between the norovirus II.4 Sydney 2012 and the II.4 New Orleans 2009 variants. This demonstrates that the II.4 Sydney 2012 variant is undergoing further diversification and suggests a potential for rapid evolution. We also provide primers, which allow the amplification and sequencing of both the current New Orleans 2009 and Sydney 2012 variants and the new II.4 New Orleans 2009/II.4 Sydney 2012 recombinants for more accurate surveillance and transmission tracking.
منابع مشابه
Rapid emergence and antigenic diversification of the norovirus 2012 Sydney variant in Denmark, October to December, 2012.
The norovirus (NoV) season in Denmark in late 2012 was characterised by an increase in the number of NoV infections caused mainly by the 2012 Sydney variant, but also by the 2009 New Orleans variant. Analysis of approximately 85% of the capsid gene from 10 Sydney 2012 and 9 New Orleans 2009 isolates showed rapid antigenic diversification of the Sydney 2012 variant shortly after its emergence. W...
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1. Green KY. Caliciviridae: the noroviruses. In: Fields BN, Knipe DM, Howley PM, Griffin DE, Lamb RA, Martin MA, et al, editors. Fields virology, 5th ed. Philadelphia: Lippincott, Williams & Wilkins; 2007. p. 949–79. 2. van Beek J, Ambert-Balay K, Botteldoorn N, Eden J, Fonager J, Hewitt J, et al. Indications for worldwide increased norovirus activity associated with emergence of a new variant ...
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Norovirus is the major cause of acute gastroenteritis worldwide. Between November 2012 and June 2013, 1718 stool samples were requested for norovirus antigen testing in the metropolitan areas of South Korea, and 91 samples were genotyped. The norovirus antigen-positive rate peaked at 52.8% in December 2012. [corrected]. A novel norovirus GII.4 variant, GII.4 Sydney 2012, was the most frequently...
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متن کاملEvidence for recombination between pandemic GII.4 norovirus strains New Orleans 2009 and Sydney 2012.
During 2012, a novel pandemic GII.4 norovirus variant, Sydney 2012, emerged worldwide. A signature of the variant was a GII.Pe ORF1, in association with GII.4 Apeldoorn 2008-like ORF2-ORF3 genes. We report the detection of recombinant GII.4 Sydney 2012 strains, possessing the ORF1 gene of the former pandemic variant New Orleans 2009.
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عنوان ژورنال:
- Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin
دوره 18 25 شماره
صفحات -
تاریخ انتشار 2013