VIRO-TypeNed, systematic molecular surveillance of enteroviruses in the Netherlands between 2010 and 2014.
| Autor: | Benschop KS; Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands., Rahamat-Langendoen JC, van der Avoort HG, Claas EC, Pas SD, Schuurman R, Verweij JJ, Wolthers KC, Niesters HG, Koopmans MP |
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| Jazyk: | angličtina |
| Zdroj: | Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin [Euro Surveill] 2016 Sep 29; Vol. 21 (39). |
| DOI: | 10.2807/1560-7917.ES.2016.21.39.30352 |
| Abstrakt: | VIRO-TypeNed is a collaborative molecular surveillance platform facilitated through a web-based database. Genetic data in combination with epidemiological, clinical and patient data are shared between clinical and public health laboratories, as part of the surveillance underpinning poliovirus eradication. We analysed the combination of data submitted from 2010 to 2014 to understand circulation patterns of non-polio enteroviruses (NPEV) of public health relevance. Two epidemiological patterns were observed based on VIRO-TypeNed data and classical surveillance data dating back to 1996: (i) endemic cyclic, characterised by predictable upsurges/outbreaks every two to four years, and (ii) epidemic, where rare virus types caused upsurges/outbreaks. Genetic analysis suggests continuous temporal displacement of virus lineages due to the accumulation of (silent) genetic changes. Non-synonymous changes in the antigenic B/C loop suggest antigenic diversification, which may affect population susceptibility. Infections were frequently detected at an age under three months and at an older, parenting age (25-49 years) pointing to a distinct role of immunity in the circulation patterns. Upsurges were detected in the summer and winter which can promote increased transmissibility underlying new (cyclic) upsurges and requires close monitoring. The combination of data provide a better understanding of NPEV circulation required to control and curtail upsurges and outbreaks. Competing Interests: Conflicts of Interest: None declared. (This article is copyright of The Authors, 2016.) |
| Databáze: | MEDLINE |
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