ZMYND10 and influenza: The co‐display of HA stem with other influenza antigens, such as M1 and M2e, in the T4‐CoV‐Flu vaccine (T4‐M1‐M2e‐HA‐S) contributed to improved protection, as evident by faster body weight recovery after challenge compared to the monovalent HA‐stem antigen in the T4‐NP‐HA‐S vaccine (Figure S7B,C, Supporting Information).