Key Points

In Week 18, viral circulation continued the decline that began in Week 17, with the incidence rate falling below the threshold of 1,000 cases per 100,000 inhabitants for the first time since the end of 2021. The positivity rate, also on the decline, stood at 32%. At the same time, for the third consecutive week, there has been a decrease in new hospitalizations. New admissions to intensive care and deaths continue to fluctuate at a low level.

The Omicron variant still accounts for 100% of interpretable sequences, with the BA.2 sublineage dominant. The BA.4 and BA.5 sublineages of the Omicron variant have been detected in Réunion.

In S18, Réunion has entered the post-epidemic phase for bronchiolitis. However, the number of emergency room visits due to influenza has increased slightly; Réunion remains in the pre-epidemic phase.