Key Points

Chikungunya

• Since the first locally acquired cases of chikungunya were detected in August 2024, a total of 192 cases have been reported.

• The spread continues, with 47% of cases detected in Week 1.

• Two new active outbreaks have been identified.

• Reunion is experiencing a chikungunya epidemic.

Acute respiratory infection

• Increase in the number of emergency department visits for influenza-like illness (+88% between S02 and S01) and in the positivity rate of influenza tests, with co-circulation of A(H3N2) and A(H1N1)pdm09.

• For bronchiolitis, indicators remained at their baseline levels.

Gastroenteritis

• Health indicators remained stable over the past 3 weeks.