Protection against a lethal influenza B virus infection was examined in BALB/c mice immunized with plasmid DNAs encoding hemagglutinin (HA), neuraminidase (NA and NB) and nucleoprotein (NP) from the B/Ibaraki/2/85 virus. Both HA and NA DNAs conferred complete protection against the lethal challenge in all the tested mouse strains (Chen et al., 2001).
Chen et al., 2001: Chen Z, Kadowaki S, Hagiwara Y, Yoshikawa T, Sata T, Kurata T, Tamura S. Protection against influenza B virus infection by immunization with DNA vaccines. Vaccine. 2001; 19(11-12); 1446-1455. [PubMed: 11163667].