antigenic analysis of a recombinant virus by neuraminidase-inhibition tests with specific antisera to the isolated neuraminidases of a/victoria/3/75 and a/aichi/2/68 revealed that the neuraminidase antigen of the recombinant virus , a/swine/kanagawa/2/78 ( h1n2 ) , was closely related to those of a/tokyo/6/73 ( h3n2 ) and a/kumamoto/22/76 ( h3n2 ) viruses .
C0003342
antigenic
C0003320
antigen