Portrait d'un grand-père aîné tenant ses petits-enfants sur les genoux lors d'un dîner en plein air.

Group A streptococcal infections

Group A Streptococcus is a pathogen that affects only humans and is transmitted primarily through droplets and direct contact. Although usually mild, Group A Streptococcus infections can be serious or even fatal. Currently, there is no vaccine available for these infections.

Our missions

  • Monitoring the epidemiological trends of Group A streptococcal infections

  • Informing healthcare professionals and the general public

Data

View data on the epidemiological situation regarding Group A streptococcal infections in France and by region on Santé publique France.

The surveillance system for invasive group A streptococcal infections established by Santé publique France makes it possible to study the epidemiological trends of this disease.

Trends in invasive group A streptococcal infections in France, 2005–2025

In 2005, it was estimated that more than 660,000 cases of invasive group A streptococcal infection (IGAS) and more than 160,000 deaths related to these infections occurred each year worldwide.

In mainland France, in 2024, the number of cases of invasive group A streptococcal infection (66 cases of meningitis; 2,913 cases of bacteremia) was estimated at 2,979 based on data from the Epibac network.

These data showed a steady increase in the incidence rate of invasive SGA infections between 2003 (2.2/100,000) and 2019 (4.4/100,000). From 2019 to 2021, the incidence rate of SGA-related invasive infections decreased to 1.5 cases per 100,000. A resurgence of SGA infections was observed at the end of 2022. The sharp increase in the incidence rate observed from late 2022 through 2023 did not continue into 2024. However, in 2024, the incidence of SGA-related infections remained higher than that measured before the COVID-19 pandemic in 2018–2019.

Isolated bacteremias and Group A Streptococcus meningitis, estimated number of cases, mainland France, 2003–2022

Bactériémies isolées et méningites à Streptocoque du groupe A, nombre estimé de cas, France hexagonale 2003-2022
Source: EPIBAC, Public Health France

Invasive infections (isolated bacteremias and meningitis) – Estimated incidence rate (per 100,000 population) by age group, mainland France, 2024

Age group Group A Streptococcus
<1 year 6.3
1–4 years 3.8
5–9 years 1.9
10–14 years 0.9
15–19 years 0.9
20–24 years 0.9
25–29 years 1.3
30–34 years 2.0
35–39 2.5
40–44 2.8
45–49 2.1
50–54 3.1
55–59 3.1
60–64 years 4.6
65–69 6.6
70–74 years 7.5
75–79 years 10.5
80–84 years 13.1
85–89 years 25.5
>89 years 41.0

Invasive infections (isolated bacteremias and meningitis) – Estimated incidence rate (per 100,000 inhabitants), French overseas departments and regions, 2024

Group A Streptococcus
Martinique Meningitis 0.0
Isolated bacteremias 1.8
Guadeloupe Meningitis 0.0
Isolated bacteremias 2.1
French Guiana Meningitis 0.0
Isolated bacteremias 6.9
Reunion Meningitis 0.1
Isolated bacteremia 4.6
Mayotte Meningitis 0.3
Isolated bacteremias 12.5

Bulletin of the Surveillance Network for Invasive Bacterial Infections

For bulletins published since 2023, the indicators have been estimated using the new method for calculating network coverage, which has been in use since 2003.

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bulletin national

25 November 2025

Invasive bacterial infections in 2024. Summary of surveillance data from the Epibac network.

Unusual Increase in Pediatric Cases of Invasive Group A Streptococcal Infections (IGASIs) in November 2022

During the second half of November 2022, pediatricians and pediatric intensivists reported to Santé publique France and the Regional Health Agencies (ARS) an unusual increase in the number of pediatric cases of invasive Group A Streptococcus (IGAS) infections in their healthcare facilities, some of which resulted in deaths. These reports came from various regions, notably Occitanie, Auvergne-Rhône-Alpes, and Nouvelle-Aquitaine, and primarily affected children under the age of 10.

In response to this increase in cases, Santé publique France, in partnership with the GFRUP (Francophone Group for Pediatric Intensive Care and Emergency Medicine), has stepped up surveillance to supplement existing measures. Situation reports have been published regularly to inform healthcare professionals and the public about developments, treatment recommendations, and preventive measures to be taken.

View the situation reports produced by Santé publique France: