Supplementation of seasonal vaccine with multi-subtype neuraminidase and M2 ectodomain virus-like particle improves protection against homologous and heterologous influenza viruses in aged mice

Jannatul Ruhan Raha, Ki‐Hye Kim, Noopur Bhatnagar, Rong Liu, Chau Thuy Tien Le, Bo Ryoung Park, Phillip B Grovenstein, Surya Sekhar Pal, Eun‐Ju Ko, Chong Hyun Shin, Bao‐Zhong Wang, Sang‐Moo Kang