Key Points

COVID-19

• Accelerated viral circulation of SARS-CoV-2 across the entire region, with a rise in hospital admissions following several weeks of decline, particularly among older adults.

• The BA.5 sublineage has been on the rise and has been the dominant strain since week S24; it accounts for 58.8% of interpretable sequences in the Flash S24 survey (49.3% for Flash S23); increase in the proportion of samples carrying the L452 mutation (53.2% in S25 vs. 48.9% in S24).

• Increase in the number of COVID-19 cases in ESMS.

Other regional surveillance

• Gastroenteritis and acute diarrhea: activity was moderate, with an increase in hospital emergency departments

• Chickenpox: activity on the rise in hospital emergency departments

• Allergies: activity increased in hospital emergency departments

• Asthma: activity decreasing in hospital emergency departments

• Air quality: average for this weekend

• Heat-related illnesses: activity decreasing in hospital emergency departments