Key Points

• Inter-epidemic phase: with an increase in the number of confirmed cases and emergency room visits over the past 4 weeks.

• Active virus circulation in Saint-Louis, Saint-Paul, Saint-André, and Saint-Pierre.

• Identification of the DENV-3 serotype in Saint-André amid the co-circulation of the DENV-1 and DENV-2 serotypes across the entire island.

• Return from vacations creates conditions conducive to the importation of new cases and serotypes.