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Warning

COVID-19 and Influenza Surveillance : role of the Sentinelles network

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illness” (ILI, defined as sudden onset of fever above 39°C, accompanied by myalgia and respiratory signs) has been replaced by “acute respiratory infections” (ARI, defined as sudden onset of fever or feeling of fever and respiratory signs).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, rhinovirus and metapneumovirus), based on patients consulting a general practitioner for an ARI. 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.

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 leading studies and research works on the COVID-19 presented in the “COVID-19” section of this website.

Observed situation in France for the week 37 of the year 2021, from 09/13/2021 to 09/19/2021 :

Published on 09-22-2021 19:09 - These news are updated on wednesday

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

  Increasing activity in general practice

Previously on sentiweb            

The objective of ARI surveillance is to monitor epidemics of COVID-19, INFLUENZA as well as those due to other seasonal respiratory viruses (RSV, rhinovirus and metapneumovirus).

In metropolitan France, last week (2021w37), the incidence rate of ARI consultating (or teleconsulting) in general practice was estimated at 65 cases per 100,000 inhabitants (95% CI [55 ; 75]). This rate is increasing compared to week 2021w36 (consolidated data: 41 [34 ; 48]).

At the regional level, the highest incidence rates were noted in: Provence-Alpes-Côte d’Azur (150 [82 ; 218]), Bretagne (143 [80 ; 206]) and Ile-de-France (104 [56 ; 152]). 

COVID-19 monitoring: Last week (2021w37), the SARS-CoV-2 positivity rate of patients consulting for ARI was 2%, 8% and 21%, respectively in the 0-14, 15-64, and 65 and older age groups.
The incidence rate of ARI cases due to SARS-CoV-2 (COVID-19) seen in general practice was estimated at 6 cases per 100,000 population (95% CI [4; 8]), corresponding to 3,688 [2,385; 4,991] new cases of COVID-19 seen in general practice. This rate is slightly decreasing compared to those in recent weeks (consolidated data for 2021w36 : 7 [5; 9], representing 4,815 [3,587; 6,043] new cases of ARI due to COVID-19 seen in general practice).
  Estimated weekly incidence rate Estimated weekly incidence
France 57 [49 ; 65] 37828 [32219 ; 43437]
Regions
Grand Est 52 [27 ; 77] 2923 [1529 ; 4317]
Nouvelle-Aquitaine 29 [10 ; 48] 1778 [644 ; 2912]
Auvergne-Rhône-Alpes 58 [34 ; 82] 4745 [2819 ; 6671]
Bourgogne-Franche-Comté 20 [0 ; 44] 580 [0 ; 1260]
Bretagne 144 [85 ; 203] 4944 [2915 ; 6973]
Centre-Val de Loire 36 [10 ; 62] 943 [265 ; 1621]
Corse 12 [0 ; 35] 40 [0 ; 118]
Ile-de-France 105 [60 ; 150] 12902 [7397 ; 18407]
Occitanie 52 [28 ; 76] 3126 [1671 ; 4581]
Hauts-de-France 28 [6 ; 50] 1728 [388 ; 3068]
Normandie 13 [0 ; 26] 449 [16 ; 882]
Pays de la Loire 29 [3 ; 55] 1127 [119 ; 2135]
Provence-Alpes-Côte d'Azur 120 [66 ; 174] 6168 [3416 ; 8920]

Acute diarrhea   Définition

  Low to moderate activity in general practice

Previously on sentiweb            

 
In metropolitan France, last week (2021w37), the incidence rate of acute diarrhea seen in general practice was estimated at 82 cases per 100,000 inhabitants (95% CI [70 ; 94]). This rate is slightly increasing compared to week 2021w36 (consolidated data: 74 [63 ; 85]) with an activity level below those usually observed in this period.

At the regional level, the highest incidence rates were noted in: Bourgogne-Franche-Comté (197 [54 ; 340]), Pays de la Loire (143 [26 ; 260]) and Auvergne-Rhône-Alpes (121 [58 ; 184]).
  Estimated weekly incidence rate Estimated weekly incidence
France 78 [68 ; 88] 51674 [44813 ; 58535]
Regions
Grand Est 95 [52 ; 138] 5386 [2953 ; 7819]
Nouvelle-Aquitaine 74 [45 ; 103] 4529 [2771 ; 6287]
Auvergne-Rhône-Alpes 111 [50 ; 172] 9072 [4111 ; 14033]
Bourgogne-Franche-Comté 177 [61 ; 293] 5112 [1776 ; 8448]
Bretagne 53 [20 ; 86] 1820 [686 ; 2954]
Centre-Val de Loire 48 [17 ; 79] 1251 [440 ; 2062]
Corse 9 [0 ; 27] 30 [0 ; 91]
Ile-de-France 69 [45 ; 93] 8484 [5543 ; 11425]
Occitanie 46 [22 ; 70] 2763 [1294 ; 4232]
Hauts-de-France 104 [60 ; 148] 6365 [3688 ; 9042]
Normandie 17 [1 ; 33] 573 [16 ; 1130]
Pays de la Loire 82 [36 ; 128] 3160 [1385 ; 4935]
Provence-Alpes-Côte d'Azur 96 [46 ; 146] 4904 [2353 ; 7455]

Chickenpox   Définition

  Low activity in general practice

Previously on sentiweb            

 
In metropolitan France, last week (2021w37), the incidence rate of Chickenpox seen in general practice was estimated at 4 cases per 100,000 inhabitants (95% CI [2 ; 6]). This rate is stable compared to week 2021w36 (consolidated data: 5 [2 ; 8]) and with an activity level close to those usually observed in this period.mpared to those usually observed in this period.

At the regional level, the highest incidence rates were noted in: Pays de la Loire (13 [0 ; 40]), Bourgogne-Franche-Comté (5 [0 ; 18]), Auvergne-Rhône-Alpes (5 [0 ; 12]), Hauts-de-France (4 [0 ; 12]) and Nouvelle-Aquitaine (4 [0 ; 13]).
  Estimated weekly incidence rate Estimated weekly incidence
France 3 [1 ; 5] 1853 [641 ; 3065]
Regions
Grand Est 2 [0 ; 7] 105 [0 ; 379]
Nouvelle-Aquitaine 2 [0 ; 7] 136 [0 ; 450]
Auvergne-Rhône-Alpes 3 [0 ; 7] 251 [0 ; 567]
Bourgogne-Franche-Comté 3 [0 ; 10] 87 [0 ; 297]
Bretagne 0 [0 ; 1] 13 [0 ; 60]
Centre-Val de Loire 0 [0 ; 0] 0 [0 ; 0]
Corse 0 [0 ; 0] 0 [0 ; 0]
Ile-de-France 1 [0 ; 3] 156 [0 ; 393]
Occitanie 2 [0 ; 13] 137 [0 ; 810]
Hauts-de-France 3 [0 ; 10] 186 [0 ; 586]
Normandie 0 [0 ; 0] 0 [0 ; 0]
Pays de la Loire 6 [0 ; 17] 229 [0 ; 655]
Provence-Alpes-Côte d'Azur 2 [0 ; 7] 113 [0 ; 385]

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