Key Points

• During the 2023 season, 265 new municipalities were considered colonized (for a total of 1,065 municipalities in the ARA).

• Season with the highest number of adulticide treatments for vector control:

  • 216 surveys conducted

  • 61 revealed the presence of tiger mosquito populations

  • 53 adulticide vector control treatments carried out.

• Year with the highest number of reported cases in the ARA:

  • 252 imported cases of arboviral diseases, including:

    • 240 cases of dengue, mostly imported from Guadeloupe and Martinique

    • 10 cases of chikungunya

    • 2 cases of Zika

  • 2 locally acquired cases of dengue recorded in the Drôme