Public data

What official bodies say about pests in France

We produce no figures of our own: this page gathers data published by public bodies, each with a link to the original document.

How we work: every data point is taken from a publication by a French public body (ANSES, Santé publique France, Institut Pasteur, MNHN, ministries) and links back to it. Where the body calls a figure an estimate, we say so. Source documents are in French.

Sources reviewed on 8 November 2026

01 / 05

Bed bugs: more than one household in ten

In 2023, ANSES put figures on bed bugs in France for the first time. Its finding: infestations reach every kind of household, whatever the income or the upkeep of the home, and they are expensive to deal with.

11%of households had bed bugs2017–2022, according to ANSES

€866average control spending per affected householdANSES estimate

€1.4bnspent by households to get rid of them2017–2022 total (ANSES)

2/3of affected people clear them in under two monthsANSES, “Bed bugs in 13 questions”

Where this data comes from :[1] ANSES [2] ANSES Read the guide →

02 / 05

Asian hornet: an invasive species here to stay

Accidentally brought into south-west France, the yellow-legged hornet has spread across much of the country. The National Museum of Natural History (MNHN) coordinates its monitoring and collects nest reports.

2004estimated arrival in FranceLot-et-Garonne (MNHN)

Invasivestatus in mainland Franceinvasive alien species (INPN)

> 50%of the country colonised“more than half of France”, MNHN

Where this data comes from :[1] MNHN [2] INPN Read the guide →

03 / 05

Wasp, hornet and bee stings: what poison centres recorded

ANSES reviewed ten years of poison-centre calls (2014 to 2023) about hymenoptera stings. Most cases are mild, but hornets account for a large share of the serious ones.

10 yearsof data reviewedpoison-centre calls, 2014–2023 (ANSES)

1.5%of envenomations rated severeANSES

38%of severe cases caused by hornetsall hornet species combined (ANSES)

Which insect was involved?

Wasps37%
Hornets (all species)25%
Bees19%

Share of envenomations recorded by French poison centres, 2014–2023 (ANSES). The remainder involved an unidentified insect.

Where this data comes from :[1] ANSES Read the guide →

04 / 05

Leptospirosis: the disease people link to rats

The bacterium is mostly caught through contact with water or soil soiled by the urine of carrier animals, rats above all. Since August 2023 every case must be notified, which gives a truer picture of the disease.

886cases notified in France in 2024Santé publique France

441of them in mainland France and Corsicathe rest overseas

74%of patients admitted to hospital653 of 886 cases, 2024

13deaths recorded in 20241.5% of cases

Where this data comes from :[1] Santé publique France [2] Santé publique France Read the guide →

05 / 05

Tiger mosquito: 81 mainland départements affected

Brought into mainland France in 2004, Aedes albopictus gains ground every summer. Because it can carry dengue, chikungunya and Zika, health authorities step up surveillance from 1 May to 30 November.

81départements where it is establishedas of 1 January 2025 (Santé publique France)

84%of mainland départementsSanté publique France, 2025

2004year it was introduced to mainland FranceSanté publique France

Where this data comes from :[1] Santé publique France [2] Ministère de la Santé

Full list of documents cited

The official publications consulted for this page, for you to open and check (in French).