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Microevolution and independent incursions as main forces shaping H5 Hemagglutinin diversity during a H5N8/H5N5 highly pathogenic avian influenza outbreak in Czech Republic in 2017
A. Nagy, Á. Dán, L. Černíková, E. Vitásková, V. Křivda, J. Horníčková, R. Masopust, K. Sedlák,
Language English Country Austria
Document type Journal Article
NLK
ProQuest Central
from 2002-01-01 to 1 year ago
Medline Complete (EBSCOhost)
from 2000-01-01 to 1 year ago
Health & Medicine (ProQuest)
from 2002-01-01 to 1 year ago
Public Health Database (ProQuest)
from 2002-01-01 to 1 year ago
- MeSH
- Disease Outbreaks MeSH
- Phylogeny MeSH
- Genetic Variation MeSH
- Hemagglutinin Glycoproteins, Influenza Virus genetics MeSH
- Evolution, Molecular * MeSH
- Influenza in Birds epidemiology virology MeSH
- Birds classification virology MeSH
- Virulence MeSH
- Influenza A Virus, H5N8 Subtype classification genetics isolation & purification pathogenicity MeSH
- Influenza A virus classification genetics isolation & purification pathogenicity MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Geographicals
- Czech Republic epidemiology MeSH
Here, we present a comprehensive analysis of the H5N8/H5N5 highly pathogenic avian influenza (HPAI) virus strains detected in the Czech Republic during an outbreak in 2017. Network analysis of the H5 Hemagglutinin (HA) from 99% of the outbreak localities suggested that the diversity of the Czech H5N8/H5N5 viruses was influenced by two basic forces: local microevolution and independent incursions. The geographical occurrence of the central node H5 HA sequences revealed three eco-regions, which apparently played an important role in the origin and further spread of the local H5N8/HPAI variants across the country. A plausible explanation for the observed pattern of diversity is also provided.
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