Global update on the susceptibilities of human influenza viruses to neuraminidase inhibitors and the cap-dependent endonuclease inhibitor baloxavir, 2017–2018
values were determined. The PA variant viruses showed 6-17-fold reduced susceptibility to baloxavir. Overall, in the 2017-18 period the frequency of circulating influenza viruses with reduced susceptibility to NAIs or baloxavir was low, but continued monitoring is important.
