| Eight HA units of Apoi antigen (homologous HI = 640) were tested against antibody to viruses of Group A: WEE, EEE; Group B: JE, SLE, MVE, WN, RSSE, POW, NEG, DEN-1, MOD, RB, BSQ; Group C: MTB, ORI, APEU ; Bunyamwera Group: BAT, BUN, CV; Others: AKA, CE, KET, NOD, WIT. Only antibody to viruses of Group B inhibited the HA of Apoi antigen. |
