Bronchiolitis Epidemiological Bulletin, Week 45. 2022–2023 Season.

Key Points

  • The bronchiolitis epidemic continues at a very high level in mainland France

  • Decrease in surveillance indicators among children under 2 years of age in most regions, which may be temporary following the All Saints’ Day school break

  • In week 45, hospitalizations for bronchiolitis accounted for half of all hospitalizations following emergency room visits among children under two years of age for the second consecutive week

  • The epidemic is more intense in the regions of northern France and in Guadeloupe

  • The situation has entered the epidemic phase in Mayotte.

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