More specimens from the ART-96W group were seronegative than from the ART-Def group by enzyme immunoassay ( ART-96W 49 [ 46 % ] of 107 vs ART-Def eight [ 11 % ] of 75 ; p < 00001 ) and rapid antibody test ( 54 [ 53 % ] of 101 vs eight [ 11 % ] of 74 ; p < 00001 ) .