TABLE 2.
Percentages of cases showing IgM-IB reactivity to leptospiral antigen bands among leptospirosis patients, febrile individuals without leptospirosis, and healthy blood donors
| Leptospiral antigen (kDa) | % of cases (no. of patients) with positive IgM reactivity to leptospiral protein bands
|
||
|---|---|---|---|
| Healthy donorsa (n = 25) | Leptospirosis patientsb (n = 74) | Nonleptospirosis patientsc (n = 48) | |
| 64/69 | 40 (10) | 67.6 (50) | 50.0 (24) |
| 54 | 0 | 10.8 (8) | 22.9 (11) |
| 48 | 0 | 9.5 (7) | 0.0 |
| 45 | 0 | 16.2 (12) | 0.0 |
| 41/42 | 0 | 45.9 (34) | 0.0 |
| 37 | 0 | 29.7 (22) | 0.0 |
| 35/36 | 0 | 31.1 (23) | 0.0 |
| 32 | 0 | 66.2 (49) | 4.2 (2)e |
| 24-30d | 0 | 59.5 (41) | 0.0 |
| 19-23d | 0 | 90.5 (67) | 4.2 (2)e |
| 14-18d | 0 | 91.9 (68) | 4.2 (2)e |
a
Healthy blood donors from Ramathibodi Blood Bank.
b
Confirmed by isolation and/or MAT results of seroconversion or a single titer of ≥400.
c
Twelve individuals each with melioidosis, dengue, hepatitis, and malaria, which represent nonleptospirosis control groups.
d
Mostly diffuse bands.
e
Found in two malaria cases.