
Molecular and genetic data are summarized on the origin of influenza A virus pandemic variants. Conceptual modifications of the reassortment theory of the origin of pandemic strains are discussed in connection with the appearance of new H5 and H9 avian influenza viruses, which caused the respiratory infection in man and which are presently in the focus of attention as possible agents of future pandemic.
Molecular Epidemiology, Hemagglutinin Glycoproteins, Influenza Virus, Global Health, Disease Outbreaks, Birds, Species Specificity, Influenza A virus, Influenza in Birds, Influenza, Human, Animals, Humans, RNA, Viral, Reassortant Viruses
Molecular Epidemiology, Hemagglutinin Glycoproteins, Influenza Virus, Global Health, Disease Outbreaks, Birds, Species Specificity, Influenza A virus, Influenza in Birds, Influenza, Human, Animals, Humans, RNA, Viral, Reassortant Viruses
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 0 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
