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3.4.4b clade had the M2-S31 genotype. Fewer than 1% of analyzed viruses had amino acid substitutions associated with reduced susceptibility to baloxavir (PA-E199G, PA-E199E/G) or reduced or highly reduced inhibition by neuraminidase inhibitors (NA-R150/152K, NA-I221/222M, NA-I221/222I/M, NA-I221/222V, NA-I115/117V, NA-G145/147R, NA-R291/292R/K). An NA-N293/294S substitution was not present in sequences from the GISAID database. To the best of our knowledge, influenza A(H5N8) viruses with reduced inhibition by oseltamivir bearing an NA-N2