Has influenza B/Yamagata become extinct and what implications might this have for quadrivalent influenza vaccines?
Paget, John and Caini, Saverio and Del Riccio, Marco and van Waarden, Willemijn and Meijer, Adam, Eurosurveillance, 27, 2200753 (2022), https://doi.org/10.2807/1560-7917.ES.2022.27.39.2200753