Assessment of population susceptibility to upcoming seasonal influenza epidemic strain using interepidemic emerging influenza virus strains.

Epidemiol Infect · 2019 · PMC6805736 · PMID 31556360

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a clear trendno p-value reported

As seen in Figure 1a , HA S183P substitution, which was found in most A(H1N1) strains collected in the 2018/19 winter influenza season, showed a clear trend of increase since the last A(H1N1) predominant season in 2015/16 winter.

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