ARI are caused by a variety of respiratory viruses including SARS-CoV-2 (Covid-19), influenza viruses, and other respiratory viruses such as RSV, rhinovirus, and metapneumovirus. The purpose of ARI surveillance is to monitor outbreaks of these viruses.
 
In mainland France, last week (2025w43), the incidence rate of acute respiratory infection (ARI) cases consulting in general practice was estimated at 172 cases per 100,000 population (95% CI [164; 181]) (data sources: Sentinelles and IQVIA (EMR)).
Subject to future data consolidation, this rate is slightly decreasing compared to the previous week and corresponds to a similar level of activity to those usually observed at this time of the year (consolidated data for 2025w42: 192 [184; 200]).

At the regional level, the highest incidence rates were noted in: Grand Est (290 [253; 328]), Bretagne (267 [222; 312]) and Nouvelle-Aquitaine (225[191; 260]). 

Covid-19: the incidence rate of Covid-19 cases seen in general practice for an ARI was estimated at 26 cases per 100,000 population (95% CI [19; 33]) (data source: Sentinelles). 
Subject to future data consolidation, this rate is stable compared to the previous week (consolidated data for 2025w42: 25 [21; 30]).

RSV infection: the incidence rate of RSV infection cases seen in general practice for an ARI was estimated at 9 cases per 100,000 population (95% CI [3; 15]) (data sources: Sentinelles, SOS Médecins, Rouen and Côte d’Azur Universities). All cases were observed in patients under the age of 15.
Subject to future data consolidation, this rate is slightly increasing compared to the previous week (consolidated data for 2025w42: 4 [1; 6]). No active circulation of influenza viruses is observed in general practice.

Bronchiolitis in children under 1 : the incidence rate of bronchiolitis cases in children under 1 seen in general practice was estimated at 55 cases per 100,000 population (95% CI [0; 109]) (data source: IQVIA (EMR)).
Subject to future data consolidation, this rate is stable compared to the previous week (data consolidated for 2025w42: 199 [90; 309]).

Influenza: the incidence rate of influenza cases seen in general practice for an ARI was estimated at 2 cases per 100,000 population (95% CI [0; 4]) (data sources: Sentinelles, SOS Médecins, DUMG Rouen and DERMG Côte d’Azur).
Subject to future data consolidation, this rate is stable compared to the previous week (consolidated data 2025w42: [0; 4])

The purpose of acute diarrhea surveillance is to monitor gastroenteritis outbreaks.
 
In mainland France, last week (2025w43), the incidence rate of acute diarrhea cases seen in general practice was estimated at 48 cases per 100,000 population (95% CI [43; 52]). 
Subject to future data consolidation, this rate is stable compared to the previous weeks and corresponds to a lower activity level than those usually observed at this time of the year (consolidated data for 2025w42: 56 [51; 60]).

At the regional level, the highest incidence rates were noted in: Grand Est (79 [59; 98]), Provence-Alpes-Côte d’Azur (62 [41; 82]) and Nouvelle-Aquitaine (57 [39; 75]).

Data sources: Sentinelles and IQVIA (EMR)

In mainland France, last week (2025w43), the incidence rate of Chickenpox cases seen in general practice was estimated at 5 cases per 100,000 population (95% CI [4; 7]). 
Subject to future data consolidation, this rate is stable compared to the previous week and corresponds to a low activity level compared to those usually observed at this time of the year (consolidated data for 2025w42: 6 [4; 7]).

At the regional level, the highest incidence rates were noted in: Corse (35 [0; 75]), Pays de la Loire (11 [1; 21]) and Provence-Alpes-Côte d’Azur (10 [1; 18]).

Data sources: Sentinelles and IQVIA (EMR)