{Reference Type}: Journal Article
{Title}: Multicountry Spread of Influenza A(H1N1)pdm09 Viruses with Reduced Oseltamivir Inhibition, May 2023-February 2024.
{Author}: Patel MC;Nguyen HT;Pascua PNQ;Gao R;Steel J;Kondor RJ;Gubareva LV;
{Journal}: Emerg Infect Dis
{Volume}: 30
{Issue}: 7
{Year}: 2024 Jul
{Factor}: 16.126
{DOI}: 10.3201/eid3007.240480
{Abstract}: Since May 2023, a novel combination of neuraminidase mutations, I223V + S247N, has been detected in influenza A(H1N1)pdm09 viruses collected in countries spanning 5 continents, mostly in Europe (67/101). The viruses belong to 2 phylogenetically distinct groups and display ≈13-fold reduced inhibition by oseltamivir while retaining normal susceptibility to other antiviral drugs.