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Benschop, K.S.M.; Broberg, E.K.; Hodcroft, E.; Schmitz, D.; Albert, J.; Baicus, A.; ... ; Simmonds, P. (2021)

Molecular epidemiology and evolutionary trajectory of emerging echovirus 30, Europe

Article / Letter to editor
In 2018, an upsurge in echovirus 30 (E30) infections was reported in Europe. We conducted a large-scale epidemiologic and evolutionary study of 1,329 E30 strains collected in 22 countries in Europe during 2016-2018. Most E30 cases affected persons 0-4 years of age (29%) and 25-34 years of age (27%). Sequences were divided into 6 genetic clades (G1-G6). Most (53%) sequences belonged to G1, followed by G6 (23%), G2 (17%), G4 (4%), G3 (0.3%), and G5 (0.2%). Each clade encompassed unique individual recombinant forms; G1 and G4 displayed >= 2 unique recombinant forms. Rapid turnover of new clades and recombinant forms occurred over time. Clades G1 and G6 dominated in 2018, suggesting the E30 upsurge was caused by emergence of 2 distinct clades circulating in Europe. Investigation into the mechanisms behind the rapid turnover of E30 is crucial for clarifying the epidemiology and evolution of these enterovirus infections.
All authors
Benschop, K.S.M.; Broberg, E.K.; Hodcroft, E.; Schmitz, D.; Albert, J.; Baicus, A.; Bailly, J.L.; Baldvinsdottir, G.; Berginc, N.; Blomqvist, S.; Bottcher, S.; Brytting, M.; Bujaki, E.; Cabrerizo, M.; Celma, C.; Cinek, O.; Claas, E.C.J.; Cremer, J.; Dean, J.; Dembinski, J.L.; Demchyshyna, I.; Diedrich, S.; Dudman, S.; Dunning, J.; Dyrdak, R.; Emmanouil, M.; Farkas, A.; Gascun, C. de; Fournier, G.; Georgieva, I.; Gonzalez-Sanz, R.; Hooydonk-Elving, J. van; Jaaskelainen, A.J.; Jancauskaite, R.; Keeren, K.; Fischer, T.K.; Krokstad, S.; Nikolaeva-Glomb, L.; Novakova, L.; Midgley, S.E.; Mirand, A.; Molenkamp, R.; Morley, U.; Mossong, J.; Muralyte, S.; Murk, J.L.; Nguyen, T.; Nordbo, S.A.; Osterback, R.; Pas, S.; Pellegrinelli, L.; Pogka, V.; Prochazka, B.; Rainetova, P.; Ranst, M. van; Roorda, L.; Schuffenecker, I.; Schuurman, R.; Stoyanova, A.; Templeton, K.; Verweij, J.J.; Voulgari-Kokota, A.; Vuorinen, T.; Wollants, E.; Wolthers, K.C.; Zakikhany, K.; Neher, R.; Harvala, H.; Simmonds, P.
Date
2021-06-01
Journal
Emerging Infectious Diseases
Volume
27
Issue
6
Pages
1616 - 1626
DOI
doi:10.3201/eid2706.203096
Link
https://wwwnc.cdc.gov/eid/article/27/6/pdfs/20-3096.pdf