Key Points

In 2024, the various pertussis surveillance indicators tracked by Santé publique France Réunion show the following trends:

• Reports to the ARS

  • An increase in pertussis cases reported to the ARS in Réunion, with 27% of reports involving infants (children under 1 year of age)

• In the hospital

  • An increase in emergency room visits with pertussis as the primary reason compared to previous years, primarily affecting children under 1 year of age (48%)

• Laboratory data in outpatient settings and hospitals

  • An increase in positive PCR tests and the positivity rate in the second half of 2024, particularly among young children