Table 2.

Diagnostic and other common positive laboratory findings of the cases

	Number; %
Positive serological tests* (n = 399)
Anti-CHIK IgG	173 (43.3)
Anti-CHIK IgM	165 (41.3)
RT-PCR in Blood	38 (9.5)
RT-PCR in CSF	6 (1.5)
Both IgG and IgM positive	17 (4.2)
Hematological and biochemical tests (n = 690)
High erythrocyte sedimentation rate (> 20 mm in 1st hour)	156 (22.6)
High serum glutamic pyruvic transaminase (> 35 IU/L)	73 (10.5)
Leukopenia (< 4,500/mm3)	72 (10.4)
High random blood sugar† (> 11.1 mmol/L)	54 (7.8)
Thrombocytopenia (< 150,000/mm3)	41 (5.9)
Neutropenia (< 1,500/mm3)	35 (5.0)
Hyponatraemia (< 130 mmol/L)	12 (1.7)
Hypokalaemia (< 3.5 mmol/L)	1 (0.1)

CHIK = chikungunya; RT-PCR = reverse transcription polymerase chain reaction.

* Confirmed cases only.

† Includes few missing data.