Observed situation in France for the week 12 of the year 2025, from 03/17/2025 to 03/23/2025 :

Surveillance of acute respiratory infections by the Sentinelles network (Covid-19, influenza and RSV infections)

In March 2020, following the emergence of SARS-CoV-2 (COVID-19), the “Sentinelles surveillance” evolved. The surveillance of  “influenza-like illness” (ILI, defined as sudden onset of fever above 39°C, accompanied by myalgia and respiratory signs) has been replaced by “acute respiratory infections” (ARI, defined as sudden onset of fever or feeling of fever and respiratory signs). 

This new surveillance enables both the monitoring of the COVID-19 pandemic and epidemics due to other respiratory viruses (influenza, respiratory syncytial virus (RSV), rhinovirus and metapneumovirus). This surveillance is carried out with “Santé publique France” (the national agency for public health), the National Reference Center for respiratory infections (“Institut Pasteur” and “Hospices Civils de Lyon”) and the University of Corsica. This surveillance is based on patients consulting a general practitioner or a paediatrician for an ARI.

Data from the Sentinelles network are integrated into the overall national COVID-19 surveillance coordinated by “Santé publique France”. For more information, you can consult the weekly COVID-19 and influenza newsletters from “Santé publique France”

At the same time, the Sentinelles network is carrying out studies and research on Covid-19, which are presented in the “Covid-19” section of this website.

Published on 03-26-2025 17:03 - These news are updated on wednesday

Acute Respiratory Infection (ARI) Covid-19, Influenza and other respiratory viruses   Définition

  Low activity in general practice

Previously on sentiweb            

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 (2025w12), the incidence rate of acute respiratory infection (ARI) cases consulting in general practice was estimated at 159 cases per 100,000 population (95% CI [142; 177]) (Data sources: Sentinelles).
Subject to future data consolidation, this rate is stable compared to previous weeks (consolidated data for 2025w11: 148 [133; 162]).

At the regional level, the highest incidence rates were noted in: Provence-Alpes-Côte d’Azur (471 [263; 679]), Grand Est (307 [194; 420]) and Bretagne (222 [140; 304]). 

Influenza: the incidence rate of influenza cases seen in general practice for an ARI was estimated at 42 cases per 100,000 population (95% CI [30; 54]) (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 for 2025w11:  33 [25; 41]) and is at a low level of activity.

RSV infection: the incidence rate of RSV infection cases seen in general practice for an ARI was estimated at 0 RSV cases per 100,000 population (95% CI [0; 10]) (data sources: Sentinelles, SOS Médecins, Rouen and Côte d’Azur Universities). No cases of RSV infection were detected among the samples taken by Sentinel physicians for week 2025w12.
Subject to future data consolidation, this rate is stable compared to the previous weeks (consolidated data for 2025w11: 8 [4; 11]) and is at a low level of activity.

Covid-19: the incidence rate of Covid-19 cases seen in general practice for acute respiratory infection was estimated at 6 cases per 100,000 population (95% CI [4; 8]) (Data source: Sentinelles).
Subject to future data consolidation, this rate is stable compared to those of the previous weeks (consolidated data for 2025w11: 4 [3; 6]) and is at a low level of activity.
  Estimated weekly incidence rate Estimated weekly incidence
France 159 [142 ; 177] 106898 [95248 ; 118548]
Regions
Grand Est 307 [194 ; 420] 17389 [10978 ; 23800]
Nouvelle-Aquitaine 112 [55 ; 169] 7013 [3463 ; 10563]
Auvergne-Rhône-Alpes 123 [79 ; 168] 10287 [6566 ; 14008]
Bourgogne-Franche-Comté 65 [27 ; 103] 1873 [780 ; 2966]
Bretagne 222 [140 ; 304] 7804 [4931 ; 10677]
Centre-Val de Loire 120 [62 ; 177] 3155 [1647 ; 4663]
Corse 26 [0 ; 70] 93 [0 ; 249]
Ile-de-France 112 [82 ; 142] 13991 [10218 ; 17764]
Occitanie 118 [74 ; 162] 7344 [4619 ; 10069]
Hauts-de-France 136 [86 ; 186] 8277 [5213 ; 11341]
Normandie 211 [54 ; 369] 7201 [1832 ; 12570]
Pays de la Loire 136 [36 ; 237] 5406 [1415 ; 9397]
Provence-Alpes-Côte d'Azur 471 [263 ; 679] 24704 [13787 ; 35621]
Source: Array

Table showing incidence and incidence rate for the geographic area of the information bloc and eventually for the geographic sub-levels

Acute diarrhea   Définition

  Moderate activity in general practice

Previously on sentiweb            

The purpose of acute diarrhea surveillance is to monitor gastroenteritis outbreaks.
 
In mainland France, last week (2025w12), the incidence rate of acute diarrhea cases seen in general practice was estimated at 117 cases per 100,000 population (95% CI [103; 131])
Subject to future data consolidation, this rate is slightly increasing compared to the previous week and corresponds to a similar activity level compared to those usually observed at this time of the year (consolidated data for 2025w11: 98 [87; 109]).

At the regional level, the highest incidence rates were noted in: Bretagne (239 [152 ; 326]), Provence-Alpes-Côte d’Azur (161 [33 ; 289]) and Grand Est (138 [85 ; 192]).

Data sources: Sentinelles
  Estimated weekly incidence rate Estimated weekly incidence
France 117 [103 ; 131] 78444 [69168 ; 87720]
Regions
Grand Est 138 [85 ; 192] 7825 [4806 ; 10844]
Nouvelle-Aquitaine 129 [74 ; 184] 8053 [4636 ; 11470]
Auvergne-Rhône-Alpes 99 [61 ; 137] 8224 [5049 ; 11399]
Bourgogne-Franche-Comté 28 [2 ; 53] 794 [71 ; 1517]
Bretagne 239 [152 ; 326] 8379 [5321 ; 11437]
Centre-Val de Loire 100 [48 ; 151] 2626 [1274 ; 3978]
Corse 68 [0 ; 145] 243 [0 ; 517]
Ile-de-France 93 [68 ; 118] 11616 [8518 ; 14714]
Occitanie 88 [49 ; 126] 5437 [3051 ; 7823]
Hauts-de-France 91 [50 ; 132] 5542 [3048 ; 8036]
Normandie 80 [39 ; 121] 2720 [1318 ; 4122]
Pays de la Loire 94 [29 ; 160] 3743 [1146 ; 6340]
Provence-Alpes-Côte d'Azur 161 [33 ; 289] 8453 [1747 ; 15159]
Source: Array

Table showing incidence and incidence rate for the geographic area of the information bloc and eventually for the geographic sub-levels

Chickenpox   Définition

  Low activity in general practice

Previously on sentiweb            

In mainland France, last week (2025w12), the incidence rate of Chickenpox cases seen in general practice was estimated at 5 cases per 100,000 population (95% CI [2; 8])
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 2025w11: 9 [4; 13]).

At the regional level, the highest incidence rates were noted in: Bretagne (18 [0; 53]), Centre-Val de Loire (18 [0; 36]), Pays de la Loire (16 [0; 34]) and Corse (9 [0; 29]).

Data sources: Sentinelles 
  Estimated weekly incidence rate Estimated weekly incidence
France 5 [2 ; 8] 3570 [1606 ; 5534]
Regions
Grand Est 0 [0 ; 0] 0 [0 ; 0]
Nouvelle-Aquitaine 6 [0 ; 15] 365 [0 ; 923]
Auvergne-Rhône-Alpes 0 [0 ; 0] 0 [0 ; 0]
Bourgogne-Franche-Comté 0 [0 ; 0] 0 [0 ; 0]
Bretagne 18 [0 ; 53] 626 [0 ; 1854]
Centre-Val de Loire 18 [0 ; 36] 469 [0 ; 960]
Corse 9 [0 ; 29] 31 [0 ; 103]
Ile-de-France 2 [0 ; 5] 287 [0 ; 677]
Occitanie 3 [0 ; 9] 156 [0 ; 530]
Hauts-de-France 3 [0 ; 9] 164 [0 ; 524]
Normandie 2 [0 ; 10] 57 [0 ; 333]
Pays de la Loire 16 [0 ; 34] 620 [0 ; 1355]
Provence-Alpes-Côte d'Azur 8 [0 ; 27] 402 [0 ; 1432]
Source: Array

Table showing incidence and incidence rate for the geographic area of the information bloc and eventually for the geographic sub-levels