antibody specific for viral neuraminidase can be demonstrated in mice following ( i ) pulmonary infection with influenza virus , ( ii ) immunization with ultraviolet-in-activated influenza virus , ( iii ) immunization with isolated neuraminidase of influenza a ( 2 ) virus , and ( iv ) passive immunization with sera of rabbits immunized with isolated a ( 2 ) neuraminidase .
C0020971
immunization
C0042200
immunization