TABLE 6.

Brucella IgM and IgG flow assay results and comparison with standard serological assays during follow-up of treated patients

Period (mo) (n)a% Positive (95% CI) in the indicated assay
IgM flow, ≥1+IgG flow, ≥1+SAT, ≥1:320SAT, ≥1:160SAT-DTT, ≥4-fold titer reductionCoombs, ≥1:320
Initial sample (26)62 (41-79)69 (48-85)54 (34-73)73 (52-88)54 (34-73)100 (84-100)
0-1 (16)75 (44-87)81 (50-92)44 (21-69)81 (50-92)68 (39-85)88 (62-98)
1-2 (23)61 (39-80)87 (61-94)26 (11-49)48 (27-69)35 (17-57)91 (71-99)
2-3 (16)31 (12-59)69 (42-88)19 (5-46)31 (12-89)31 (12-59)88 (58-96)
3-6 (18)22 (7-48)61 (36-82)6 (0-29)22 (7-48)18 (4-42)83 (58-96)
>6 (21)19 (6-43)38 (19-61)0 (0-20)10 (2-32)19 (6-43)57 (34-77)
  • a n, number of samples.