Number of reported cases of CHIKV by month of the year over the study period (2008-2012)
* No clear seasonality in importation rate, although importations were slightly more common in the period October to April 
* In 2010, imports were highest in October (14 cases; 22% of yearly notifications) 
* The number of cases increased from 2008 to a maximum in 2010 (n= 64; 40%) 
In 2011 and 2012, 38 (24%), and 16 cases (10%) were reported, respectively