Key Points

COVID-19

• In Week 22, viral circulation continued to decline at a more moderate pace; the incidence rate was 228 cases per 100,000 inhabitants, a decrease of 24% compared to Week 21. The positivity rate was 16%. Note that the effective R remains below 1 but is rising slightly. At the same time, the number of new hospitalizations stopped decreasing between Week 21 and Week 22. New admissions to critical 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.

Influenza

• Pre-epidemic phase.

• Influenza viruses continue to circulate in urban areas, with no impact on the hospital system. Réunion remains in the pre-epidemic phase for influenza.