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Phylogenetic and antigenic analyses of influenza A(H1N1)pdm09, influenza A(H3N2), and influenza B. Phylogenetic trees of patients’ samples positive for influenza in SMC hospitalized patients in the 2022–2023 season of (H1N1)pdm09 (A), influenza (H3N2) (B), and influenza B/Victoria (C). Antigenic analysis of each strain is presented in the right corner of each figure. The samples that were tested for hemagglutination inhibition (HI) are indicated with an asterisk.
