Key Points

• Mixed trends in flu activity in mainland France:

  • Epidemic peak reached in Île-de-France in week 05

  • Stability in the Hauts-de-France, Nouvelle-Aquitaine, Occitanie, and Provence-Alpes-Côte d’Azur regions, and a decline in Corsica

  • Moderate increase in the other regions

• Co-circulation of the A(H1N1)pdm09 and B/Victoria viruses in mainland France

• Mayotte: start of the epidemic