Key Points

Dengue

• Dengue activity is low throughout the country.

Chikungunya

Since late January (Week 04), 2,017 cases of chikungunya have been laboratory-confirmed in French Guiana, including 31 in Week 39 (unconsolidated data). The virus is actively circulating in the region:

• Western Coast: After several weeks of slowing virus circulation on the Western Coast and low emergency department activity due to chikungunya, the epidemic has ended, and the area has been in the post-epidemic phase since S38. However, cases continue to be diagnosed, so vigilance must be maintained, as a resurgence of the epidemic cannot be ruled out given the regional situation.
• Savanes: The number of visits to the CHK emergency department for suspected chikungunya remained stable in Week 39, and the proportion of emergency department activity related to these visits was declining and below 6%. After a two-week slowdown in viral circulation, the situation has stabilized. The outbreak continues in this area.
• Cayenne Island: In Week 39, two active outbreaks were being monitored, spread across two municipalities in the sector. Due to the lack of some laboratory data, the trend is difficult to interpret and the number of cases is underestimated. Cayenne Island remains in the outbreak phase.
• Maroni: No new cases were biologically confirmed in Week 39 in this sector, which is in the sporadic transmission phase.
• Interior, Eastern Interior, and Oyapock: No new cases have been biologically confirmed in S39. These sectors are in the epidemiological surveillance phase.