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Serovar distribution among 100 plantation workers determined by positive microscopic agglutination test (titer ≥ 1:100).∗
| Serovars tested | Frequency | % |
|---|---|---|
| Sarawak | 62 | 62 |
| Patoc | 42 | 42 |
| Celledoni | 7 | 7 |
| Javanica | 3 | 3 |
| Australis | 3 | 3 |
| Autumnalis | 2 | 2 |
| Pyrogenes | 1 | 1 |
| Copenhageni | 1 | 1 |
| Terengganu | 1 | 1 |
Workers tested may be positive to one or more serovars.
