the blood from all patients showed elevation in brucella microagglutination test titers ( greater than or equal to 1:640 ) and in brucella-specific enzyme-linked immunosorbent assay for igm ( greater than or equal to 1:800 ) , igg ( greater than or equal to 1:800 ) and iga ( greater than or equal to 1:800 ) antibodies .
C2825347
iga
C0003241
antibodies