| Serum samples | Number | Number (%) positive for CHIKV RNA by | |
| Heat-treated centrifuged | Heat-treated uncentrifuged | ||
| CHIKV IgM +ve | 70 | 70 (100%) | 70 (100%) |
| CHIKV IgM-ve and IgG +ve | 20 | 00 (00%) | 00 (00%) |
| CHIKV IgM −ve and IgG –ve | 20 | 00 (00%) | 00 (00%) |
| Healthy control | 10 | 00 (00%) | 00 (00%) |