we have previously identified 11 epitopes located in two topologically nonoverlapping antigenic sites ( a and b ) and a third bridging site ( c ) on the human type 3 parainfluenza virus ( piv3 ) hemagglutinin-neuraminidase ( hn ) glycoprotein by using monoclonal antibodies ( mabs ) which inhibit hemagglutination and virus infectivity ( k .
C0003316
epitopes
C0003320
antigenic