| | S. no. | Clinical features | No. of patients |
| | (1) | Fever | 435 (100%) | | (2) | Chills | 372 (85.51%) | | (3) | Rigors | 310 (71.26%) | | (4) | Convulsions | 156 (35.86%) | | (5) | Neck rigidity | 103 (23.67%) | | (6) | Other signs of meningeal irritation | 79 (18.16%) | | (7) | Yellowish discoloration of sclera | 45 (10.34%) | | (8) | Renal complaints | 39 (8.96%) | | (9) | Altered consciousness | 325 (60.74%) |
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