Table 1 Qualitative slide agglutination reaction results of Widal test of febrile patients suspected of typhoid fever in St. Paul’s hospital
Reaction result | O antigen | H antigen | ||
|---|---|---|---|---|
Frequency | (%) | Frequency | (%) | |
Reactive | 127 | (47.0) | 72 | (26.7) |
Weakly reactive | 33 | (12.5) | 55 | (20.4) |
Non reactive | 110 | (40.7) | 143 | (53.0) |
Total | 270 | (100.0) | 270 | (100.0) |