Figure 3. Weekly trend of CHIKV+ve patients (confirmed cases), "CHIK probable" and "CHIK possible" cases (according to clinical diagnostic score) and "arthralgia + fever" cases, Republic of Congo, 2011.

Curves for “CHIKV+ve patients” and "arthralgia + fever" were created with the 135 patients enrolled within the 2 first days of the illness. Nine patients were excluded for the calculation of the clinical score (incomplete information regarding myalgia or arthralgia).