NDLI: A large Finnish echovirus 30 outbreak was preceded by silent circulation of the same genotype

Content Provider	Springer Nature Link
Author	Savolainen Kopra, Carita Paananen, Anja Blomqvist, Soile Klemola, Päivi Simonen, Marja Leena Lappalainen, Maija Vuorinen, Tytti Kuusi, Markku Lemey, Philippe Roivainen, Merja
Copyright Year	2010
Abstract	An outbreak of echovirus 30 (E-30) in 2009 was confirmed by both frequent isolation of the virus from sewage as well as from patient samples in Finland. Over the last 10 years E-30 had only been isolated sporadically in Finland. We here study the phylogenetic relationships of the strains from the outbreak in the context of E-30 circulation over the last 20 years. The analyzed region comprised 276 nucleotides in the 5′ end of VP1 (nucleotides 132–407 in the VP1 of the E-30 Bastianni strain). The Finnish strains were clustered into at least four distinct genogroups, with seven clusters exceeding the genotype demarcation of 12% and the 2009 epidemic strains forming the largest genogroup VII. Moreover, we detected largely divergent genotypes in 2007 and 2009. Interestingly, close genetic relatives of the epidemic strains had already been isolated a few years before the outbreak. Phylodynamic analysis estimated 8.9 years (95% highest posterior density intervals 7.0–11.0) as the age of genogroup VII, indicating a probable origin and evolutionary history prior to its introduction and epidemic expansion in Finland. Finally, the most recent common ancestor for the current E-30 diversity dates back to 1939 (95% highest posterior density intervals 1913–1956).
Starting Page	28
Ending Page	36
Page Count	9
File Format	PDF
ISSN	09208569
Journal	Virus Genes
Volume Number	42
Issue Number	1
e-ISSN	1572994X
Language	English
Publisher	Springer US
Publisher Date	2010-10-20
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Echovirus 30 Molecular epidemiology Phylodynamic analysis Virology Plant Sciences Medical Microbiology
Content Type	Text
Resource Type	Article
Subject	Virology Genetics Medicine Molecular Biology

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