Table 4. Proportion of suspected patients tested with evidence of IgM antibodies against Chikungunya virus in serum by days since illness onset, Char Kushai, Bangladesh 2011, N = 245.
Days since illness onset | No. and proportion positive |
---|---|
<7 | 1 (9) |
7–15 | 16 (64) |
15–30 | 33 (72) |
30–60 | 63 (93) |
>60 | 83 (87) |
Total | 196 (80) |