France: 2025-2026 H5N1 in Poultry

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Location of Haute-Vienne in France
/https://en.wikipedia.org/wiki/Haute-Vienne
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Avian influenza: a first outbreak detected in the Haute-Vienne department in a poultry farm

Updated on 23/11/2025

An outbreak of highly pathogenic avian influenza was confirmed on November 21, 2025 in a poultry farm at La Bedouche in the commune of Arnac-la-Poste in the department of Haute-Vienne.

As part of measures to combat the spread of the virus, a culling operation was carried out on the poultry farm declared an outbreak site of avian influenza. State services, and in particular the Departmental Directorate for Employment, Labor, Solidarity and Population Protection (DDETSPP), are working alongside the farmer, who will be compensated for the losses incurred during this operation.

To avoid any risk of the virus spreading to other farms, the prefect of Haute-Vienne has issued an order defining regulated protection zones (ZP) and surveillance zones (ZS) which are being set up within a radius of 3 and 10 km around the contaminated establishment.

The municipalities concerned within the 3 km radius are: Arnac-la-Poste, Saint-Sulpice-les-Feuilles, Mailhac-sur-Bezaine, Saint-Hilaire-La-Treille on part of their territory.

The municipalities concerned by the 10 km zone, in addition to the 4 municipalities mentioned previously, are: Saint-Sornin-Leulac, Dompierre-les-Eglises, Saint-Léger-Magnazeix, Saint-Amand-Magnazeix Jouac, Cromac, Saint-Georges-les-Landes, Les Grands Chezeaux over their entire territory.

Within these areas, all poultry and captive bird holding facilities are subject to specific regulations . In particular, the movement of poultry and other captive birds is prohibited , except for exemptions granted by the DDETSPP (Departmental Directorate for the Environment, Planning and Housing). Monitoring is also reinforced through mandatory self-inspections.

Regarding hunting activities, waterfowl hunting and game bird hunting on rivers, lakes, and ponds are prohibited in the protected and monitored zones. Also prohibited are the movement and release of game birds of the Phasianidae and Anatidae families, the transport and use of decoys for waterfowl hunting, and the sale of game birds killed by hunting, as well as the meat and products derived from them.

It is important to remember that the epizootic risk level for avian influenza has been raised to "high" since October 17th. This situation necessitates the implementation of enhanced preventative measures for poultry farms and backyard flocks throughout metropolitan France. These measures include sheltering all farmed and domestic birds to limit the risk of the avian influenza virus being introduced by wild birds.

Professionals must remain vigilant and ensure the strictest application of biosecurity measures to prevent the virus from entering their farms and to avoid its spread between farms. The same recommendations apply to individuals keeping backyard and ornamental birds.
https://agriculture.gouv.fr/influenz...s-particuliers

A reduction in compensation in the event of non-compliance by farmers with the rules in force may also be implemented.

REMINDER : The consumption of meat, foie gras and eggs – and more generally of any food product based on poultry – presents no risk to humans .

Legend :

• Green hatching: surveillance zone (ZS)
• Blue hatching: protection zone (ZP)

https://www.haute-vienne.gouv.fr/Actualites/Salle-de-presse/Communiques-de-presse/2025/Influenza-aviaire-un-premier-foyer-detecte-en-Haute-Vienne-dans-un-elevage-de-volailles

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Dordogne: A third outbreak of avian flu detected in a duck farm

By Tiphanie Naud

November 22, 2025Updated on 23/11/2025 at 13:54.

A new farm with 9,000 ducks has been affected by highly pathogenic avian influenza in Grun-Bordas, Dordogne.

Three neighboring towns and three duck farms have been affected by avian flu in the Dordogne. The latest case, confirmed this Saturday, November 22nd in Grun-Bordas, was revealed by the prefecture.

A culling operation will be carried out on the farm's 9,000 ducks. The farmer will be compensated "for the losses incurred as a result of this operation," the administration stated.

https://www.sudouest.fr/sante/grippe-aviaire/dordogne-un-troisieme-foyer-de-grippe-aviaire-detecte-dans-un-elevage-de-canards-26820063.php

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Bird flu: new outbreak in a farm in Dordogne, the fourth since mid-November

A new outbreak of highly pathogenic avian influenza was detected on Thursday in Dordogne in a farm with nearly 5,000 ducks, the fourth case since mid-November in the department, the prefecture announced on Friday, November 28.

Ouest-France
Published on 28/11/2025 at 4:21 PM

A new outbreak of highly pathogenic avian influenza was detected on Thursday in Dordogne, in a farm with nearly 5,000 ducks, the prefecture announced on Friday, November 28, 2025.

This outbreak has been confirmed in the commune of Saint-Mayme-de-Pereyrol, where another duck farm was affected on November 19. This is the fourth case in the department since mid-November. Two other cases were identified less than 10 km away, in Grun-Bordas (November 24) and Vergt (November 13).

Nearly 4,900 poultry slaughtered
In accordance with regulations, the ducks in this latest outbreak had all been vaccinated against highly pathogenic avian influenza (HPAI), the prefecture stated in a press release, emphasizing that this measure "does not completely eliminate the risk of infection in poultry." The 4,900 ducks on the affected farm were culled, the prefecture added, specifying that the farmer would be compensated.

France has been placed at high risk of HPAI since October 22 , the highest level which notably leads to the confinement of poultry.

The positive effects of vaccination
Since October 2023, and following two particularly difficult seasons for French poultry farms, vaccination of ducks, a species that amplifies the virus, has been mandatory in France, which has been relatively spared since then. Only about 68 outbreaks have been detected since August in commercial farms across fifteen departments, according to the latest figures from the Ministry of Agriculture published on Friday , and nine outbreaks involving backyard flocks and non-commercial captive birds.

In total, more than 200 outbreaks of avian influenza have already been identified in poultry farms in Europe this season, a higher level than in previous years, although it remains far from the thousands of farms hit during the last epizootic peak in 2022 with tens of millions of poultry slaughtered.

France's main health authorities warned on Thursday that the season was already shaping up to be "more unfavorable than the previous two" in terms of avian flu, with an exceptional peak in wild animals, even if the risk of transmission to humans remains limited.

https://www.ouest-france.fr/sante/grippe-aviaire/grippe-aviaire-nouveau-foyer-dans-un-elevage-en-dordogne-le-quatrieme-depuis-mi-novembre-35c3c746-cc62-11f0-9f92-1f1697d8d1ab

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/https://en.wikipedia.org/wiki/Saint-Amand-de-Vergt
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Avian influenza: a new farm affected in Saint-Amand-de-Vergt

Last updated on December 2, 2025

A new farm has been affected in the protection zone in Saint-Amand-de-Vergt

On November 30, 2025, the presence of the highly pathogenic avian influenza (HPAI) virus was detected in a new farm in the protection zone in Saint-Amand-de-Vergt.

The infection was confirmed in a flock of breeding geese after the farmers reported abnormal animal behavior (unusual calmness), scattered egg laying on the ground, and unusual mortality. HPAI testing performed 48 hours prior was negative.

The animals were euthanized on Monday, December 1st.

The previous outbreak was detected in Saint Mayme de Péreyrol on Thursday, November 27.

A new prefectural decree has been validated by the DGAL and communicated during the day (available for download at the bottom of the page).

The boundaries of the current IAHP regulated zone have been extended and new municipalities defined in the protection zone and the surveillance zone.
...

https://dordogne.chambres-agriculture.fr/actualites-1/actualite/influenza-aviaire-un-nouvel-elevage-touche-a-saint-amand-de-vergt

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Situation update: Measures to combat the spread of highly pathogenic avian influenza (HPAI) in Loire-Atlantique

Updated on 02/12/2025

Since October 15th, with the first confirmed outbreak in a farm located in Nort-sur-Erdre, Loire-Atlantique now has a total of sixteen HPAI outbreaks, including four new outbreaks at the end of last week. Another new outbreak was confirmed today in Saint-Philbert-de-Grand-Lieu.

With the outbreaks identified in Vendée, there are, to date, a total of 63 contaminated farms in the Pays de la Loire region, which concentrates the largest part of the poultry farms and which notably carries the avian genetics of our country, remains the area most impacted by the epizootic in France.

In view of these trends, the Ministry of Agriculture, Food and Food Sovereignty has changed the level of risk from "moderate" (see press release of October 15) to "high", since October 22, 2025 (ministerial decree).

This decision entails the implementation of the following enhanced prevention and biosecurity measures:
• For the entire territory: sheltering of poultry of all species; prohibition of bird gatherings; implementation of enhanced biosecurity measures during the transport of waterfowl; specific conditions for the use of decoys; conditions prior to the movement of game birds,
• Areas at risk of spread (ZRD): carrying out virological tests before movement of waterfowl between two farms; specific conditions of access for stakeholders in waterfowl farms.

The decrees defining the regulated zones following declarations of HPAI since October 15th stipulate the following security measures:
- all premises for the keeping of poultry and captive birds are subject to specific regulations. In particular, the movement of poultry and other captive birds is prohibited, except for exemptions granted by the Departmental Directorate for the Protection of Populations;
- Stakeholders in the poultry sector must ensure, throughout the country, the strictest application of biosecurity measures to prevent the virus from entering farms via wildlife and human activities, and to avoid its spread between farms. The same recommendations apply to individuals keeping backyard and ornamental birds. These measures are available on the Ministry of Agriculture's website.
https://agriculture.gouv.fr/influenza-aviaire-les-mesures-de-biosecurite-pour-les-operateursprofessionnels-et-les-particuliers.

Furthermore, certain measures concern hunting activities:
• prohibition of waterfowl hunting and game bird hunting in undrained marshes, on rivers, canals, reservoirs, lakes, ponds, in maritime hunting zones and bodies of water;
• Prohibition of the movement and release of game birds as well as the transport and use of decoys for waterfowl hunting;
• Hunting of furred game remains authorized under certain conditions, administrative hunts are now suspended.
The list of municipalities concerned is as follows:


Furthermore, as a precautionary measure to prevent the spread of the virus, walkers are advised to take the following precautionary measures in the protection and surveillance zones:
• Avoid frequenting wetlands (edges of ponds, pools, marshes and rivers) where wild birds congregate, even in their absence, due to the possible presence of the virus in droppings and contaminated soil.
• Stay on marked trails and do not approach or feed wild birds.
• If you find a dead bird, do not touch it, geolocate yourself and contact the OFB 44.
• after an outing, change your clothes and shoes to go to a poultry farm or a farmyard.

***

This health crisis is an absolute priority for the State services in order to limit the spread of the virus as quickly as possible and to preserve as much as possible the economic interests of the poultry sectors in the department.
...

https://www.loire-atlantique.gouv.fr/Publications/Communiques-de-Presse/Communique-2025/Point-de-situation-Des-mesures-pour-lutter-contre-la-propagation-du-virus-IAHP-en-Loire-Atlantique

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New case of avian flu: a duck farm contaminated in Côte-d'Or, "I discovered the first deaths on Saturday"

Written by
Lisa Guyenne
Published on
03/12/2025 at 11:21

The information, reported by our colleagues at Ici Bourgogne radio , was confirmed to us on December 3rd by the affected farmer. Avian flu has struck his flock of Muscovy ducks in Montmain, between Beaune and Seurre (Côte-d'Or).

The first ducks died four days ago

Disheartened, the farmer explains: "I discovered the first dead ducks on Saturday, then the diagnosis of avian flu was officially confirmed on December 2nd by the veterinary services."

All the birds in the building will have to be culled. According to Ici Bourgogne, there are "several thousand" of them . The euthanasia is expected to take place in the coming days.

These Muscovy ducks were raised for their meat. Due to avian flu restrictions, they were kept indoors. But "the building is ventilated, the virus must have come from the wild birds through the air ," the farmer believes. This is the first time he has been affected by avian flu. "I would have preferred never to have experienced this ," he says, dejected.

The fourth outbreak reported in Côte-d'Or

Avian influenza is fatal in 100% of cases in birds. Death occurs within 48 hours of the onset of the first symptoms. The Montmain farm is the fourth outbreak of avian influenza detected in the Côte-d'Or department.

At the end of October in the Ouche valley, a first case was detected in a poultry farm in Thorey-sur-Ouche . 500 chickens, guinea fowl and ducks had to be slaughtered.

On November 19, another case was reported near Genlis . There again, the entire flock had to be slaughtered: around a hundred geese, guinea fowl, chickens and ducks.

On December 1st, the prefecture announced that a contaminated wild duck had been found at Lake Kir in Dijon. "Residents and walkers in this area are reminded not to feed the ducks or swans ," it stated.

Elsewhere in Burgundy, HPAI has been devastating the common crane population since October. A "massacre" has been observed particularly in the Nièvre region , along the migration route of these large grey birds.

https://france3-regions.franceinfo.fr/bourgogne-franche-comte/cote-d-or/nouveau-cas-de-grippe-aviaire-un-elevage-de-canards-contamine-en-cote-d-or-j-ai-decouvert-les-premiers-morts-samedi-3259897.html

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“This is an atypical case”: a sixth outbreak of avian flu discovered on a farm in Dordogne

The 950 ducks on the farm had been vaccinated.

By Tiphanie Naud
December 4, 2025
Updated on 04/12/2025 at 2:49 PM

A new farm with 950 ducks has been affected by avian influenza in Grignols, the prefecture announced this Thursday, December 4. The ducks will be culled.


A new outbreak of avian flu was confirmed Wednesday evening, December 3, on a duck farm in Grignols, the Dordogne prefecture announced this Thursday, December 4. This brings the number of cases detected in the department to six since the first one in Vergt on November 13.

The 950 ducks on the farm will be culled, the prefecture indicates, adding that the farmer will be compensated "for the losses incurred by this operation."

Ducks that were vaccinated

"The ducks on this farm had all been vaccinated against highly pathogenic avian influenza, in accordance with regulations," the administration continues. "It is recognized that vaccination does not completely eliminate the risk of infection in poultry if the virus is introduced into the farm. However, vaccination reduces virus shedding and viral circulation."

These ducks, which were in a force-feeding facility in Grignols, came from a disease-free zone located near Brive. Samples were taken from the farmer in Corrèze in the hours following the discovery of the outbreak, without any positive results, at least for the moment. "We're starting to get really discouraged."

Transported in a truck alongside a thousand birds from another force-feeding operation, these birds have also tested negative for now. This raises questions about the origin of the virus: "It's incredibly surprising, this is an atypical case," explains Olivier Palencher, co-president of the Périgord Duck Producers Association. The epidemiological investigation will be redone to determine the origin of this case. "We're starting to get really discouraged; we wonder when this will end," admits Olivier Palencher.

The extended protection zone

In one month, highly pathogenic avian influenza has spread: from Vergt to Saint-Mayme-de-Péreyrol, to Grun-Bordas, then again to Saint-Mayme-de-Péreyrol, to Saint-Amand-de-Vergt and therefore Grignols, a little further east. The regulated zones, to combat the spread of the virus, are changing once again. The 3 km protection zone now also extends to Grignols, Manzac-sur-Vern and part of Saint-Léon-sur-l'Isle (south of the A89), Saint-Astier (south of the A89) and Montrem in its southwestern part. Following this new outbreak, the 10 km surveillance zone also includes Saint-Hilaire-d'Estissac, Saint-Séverin-d'Estissac, Vallereuil, Neuvic, Saint-Germain-du-Salembre, Annesse-et-Beaulieu, Razac-sur-l'Isle, the northern parts of Saint-Léon-sur-l'Isle, Saint-Astier and Montrem, as well as part of Léguillac-de-l'Auche.

The increase in these zones should impact relatively few ducks, according to Olivier Palencher, unlike chickens, which are present in larger numbers in this geographical area.

https://www.sudouest.fr/sante/grippe-aviaire/grippe-aviaire-en-dordogne-un-sixieme-cas-decouvert-dans-un-elevage-de-canards-26967165.php

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/https://en.wikipedia.org/wiki/Yvelines
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Versailles, December 4, 2025

PRESS RELEASE

Avian influenza: first
outbreak confirmed in Yvelines

An outbreak of highly pathogenic avian influenza was confirmed yesterday in a pheasant farm in the town
of St-Hilarion, in the Yvelines department.

To prevent any risk of the virus spreading to other farms, the Prefect of Yvelines has issued an order
defining regulated protection zones (ZP) and surveillance zones (ZS), which are being established within a
radius of 3 and 10 km respectively around the contaminated establishment.

Within the 3 km radius, the towns concerned are: Emance, Gazeran, Hermeray, Poigny-la-Foret,
Rambouillet, and St-Hilarion

In the 10 km zone in the Yvelines department, the municipalities concerned, in addition to the 6
municipalities mentioned previously, are Adainville, La Boissiere-Ecole, Les Breviaires,
Clairefontaine-en-Yvelines, Condé-sur-Vesgre, Hermeray, Mittainville, Orcemont, Orphin, Le Perray-en-Yvelines,
Prunay-en-Yvelines, Raizeux, Saint-Léger-en-Yvelines, Sonchamp and Vieille-Eglise-en-Yvelines.

...

https://www.yvelines.gouv.fr/contenu/telechargement/36046/230449/file/CP%20-%20Influenza%20aviaire%20hautement%20pathog%C3%A8ne%20(IAHP)%20-%20un%20foyer%20confirm%C3%A9%20dans%20les%20Yvelines.pdf

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/https://en.wikipedia.org/wiki/Herm,_Landes
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PREFECT
OF LANDES
Liberty
Equality
Fraternity

PRESS RELEASE

Mont-de-Marsan, December 11, 2025

First outbreak of avian influenza detected on a farm in Landes



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https://www.landes.gouv.fr/contenu/telechargement/38036/310787/file/2025%2012%2011%20CP_foyer_IAHP_Herm.pdf

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/https://en.wikipedia.org/wiki/Cl%C3%A9der
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Avian influenza - First outbreak detected in Finistère at a turkey fattening farm

Updated on
12/12/2025

An outbreak of highly pathogenic avian influenza (HPAI) has just been confirmed this Friday, December 12, 2025, in a poultry farm in the town of Cléder in the Finistère department.

To avoid any risk of the virus spreading to other farms, the prefect of Finistère has issued an order defining regulated protection zones (ZP) and surveillance zones (ZS) which are respectively put in place within a radius of 3 and 10 km around the contaminated establishment.
...

https://www.finistere.gouv.fr/Actualites/Influenza-aviaire-Un-1er-foyer-detecte-dans-le-Finistere-dans-un-elevage-de-dindes-d-engraissement

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/https://en.wikipedia.org/wiki/Lison
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A case of avian flu has been detected on a farm in Normandy: 8,500 poultry have been culled.

On Monday, December 15, 2025, 8,500 poultry were culled after a case of avian influenza was detected in Lison (Calvados). Protection and surveillance zones were established.

Léonie Castelain
Modified on16/12/2025 at 11:47
Published on16/12/2025 at 09:34

A case of highly pathogenic avian influenza (HPAI) has been detected in a poultry farm in Calvados , the prefecture announced in a press release on Tuesday, December 16, 2025. The outbreak is located in Lison.

Approximately 8,500 poultry were slaughtered on Monday, December 15, 2025, to combat the spread of the virus . A disinfection and cleaning operation also took place.

Surveillance and protection zones

A regulated protection zone of three kilometers around the fire has been put in place. It covers the municipalities of Cartigny-l'Épinay, Lison, Saint-Marcouf and Sainte-Marguerite-d'Elle, Airel, Moon-sur-Elle, Saint-Clair-sur-Elle, Saint-Jean-de-Cavigny.

A surveillance zone has also been established. It encompasses the municipalities located between three and ten kilometers around the outbreak. For Calvados, this includes Bernesq, Bricqueville, Colombières, La Folie, Isigny-sur-Mer, Le Molay-Littry, Monfréville, Saint-Martin-de-Blagny and Tournières.

Several towns in the Manche department are also within the surveillance zone: Berigny, Cavigny, Cerisy-la-Forêt, Couvains, Le Dezert, La Luzerne, La Meauffe, Le Mesnil-Rouxelin, Le Mesnil-Vesneron, Pont-Hebert, Saint-André-l'Épine, Saint-Fromond, Saint-Georges-d'Elle, Saint-Jean-de-Daye, and Villiers-Fossard. Parts of the town of Carentan-les-Marais are also affected: south of the RN13 and east of the RN174.
...

https://www.ouest-france.fr/sante/grippe-aviaire/un-cas-de-grippe-aviaire-a-ete-detecte-dans-un-elevage-de-normandie-8-500-volailles-abattues-1a9e2aa6-da54-11f0-9747-9a2b95e61f84

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/https://en.wikipedia.org/wiki/Descartes,_Indre-et-Loire
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A case of avian flu detected in a private individual's backyard in Indre-et-Loire

By Cécile LASCEVE
Published on 15/12/2025 at 20:12
updated on15/12/2025 at 20:17

The Indre-et-Loire prefecture has confirmed a case of avian influenza in a backyard flock near Descartes. The health protocol was followed: all the birds in the aviary were culled.

According to a press release from the Indre-et-Loire prefecture , the presence of "a highly pathogenic avian influenza outbreak" was confirmed on Saturday, December 13, 2025, in a backyard poultry farm in southern Indre-et-Loire. The health protocol was implemented: "An operation to cull the birds present on the site was carried out ," the prefecture stated. The other animals in the henhouse, which, according to our information, belonged to a private individual, were culled.

Following the established protocol, the prefect issued an order defining a temporary control zone (TCZ) within a 5 km radius of the contaminated poultry yard. This zone encompasses the municipalities of Bournan, La Celle-Saint-Avant, La Chapelle-Blanche-Saint-Martin, Civray-sur-Esves, Cussay, Descartes, Ligueil, Marcé-sur-Esves, Neuilly-le-Brignon, and Sepmes. Within this perimeter, the birds are subject to enhanced monitoring "through self-monitoring in certain commercial poultry establishments."

The third case in Indre-et-Loire

The prefecture reiterates that avian influenza is a "highly contagious viral animal disease" that can cause "mortality episodes of up to 100% of the flock and periods of significant production declines." It further clarifies that consuming meat, foie gras, and eggs from infected animals poses no risk to humans.

As a reminder, two cases of avian influenza have already been detected in the department: on Tuesday, November 25, in a mallard duck near the Louroux pond, next to Manthelan, and on November 15, in a common crane in Civray-sur-Esves, in southern Touraine. Indre-et-Loire has since been placed on heightened alert.

https://www.lanouvellerepublique.fr/indre-et-loire/commune/civray-de-touraine/un-cas-de-grippe-aviaire-detecte-dans-la-basse-cour-d-un-particulier-en-indre-et-loire-1765825964

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/https://en.wikipedia.org/wiki/Billy,_Loir-et-Cher
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Avian influenza - First outbreak detected in a poultry farm in Loir-et-Cher

Updated on
17/12/2025

An outbreak of highly pathogenic avian influenza was confirmed on December 9, 2025 in a poultry farm in the town of Billy, in the department of Loir-et-Cher .

To avoid any risk of the virus spreading to other farms, the prefect of Loir-et-Cher has issued an order defining regulated protection zones (ZP) and surveillance zones (ZS) which are respectively being set up in the municipalities within a radius of 3 and 10 km around the contaminated establishment (see delimitation in order no. 41-2025-12-12-00001) .

The municipalities concerned by the protection zone are: Billy, Gy-en-Sologne.

The municipalities concerned by the surveillance zone are: Billy, Châtillon-sur-Cher, Chémery, Gièvres, Gy-en-Sologne, Lassay-sur-Croisne, Méhers, Meusnes, Mur-de-Sologne, Pruniers-en-Sologne, Rougeou, Selles-sur-Cher, Soings-en-Sologne.
...

https://www.loir-et-cher.gouv.fr/Publications/Communiques-de-presse/Annee-2025/Influenza-aviaire-Un-premier-foyer-dans-un-elevage-detecte-dans-le-Loir-et-Cher

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Azay-sur-Cher
A second outbreak of avian flu has been discovered in a farmyard in Indre-et-Loire.

Romain Dézèque
Published onThursday, December 18, 2025 at 12:11 PM

The Indre-et-Loire prefecture has announced the discovery of a second outbreak of avian influenza in a backyard poultry farm in Indre-et-Loire. A temporary control zone has been established between Larçay, Athée-sur-Cher, Esvres, and Cormery.

Three days after the first case of avian influenza was discovered in southern Touraine, a second case has been identified in an area encompassing the towns of Cormery, Esvres, Larçay, Veretz, Azay-sur-Cher, and Athée-sur-Cher, the Indre-et-Loire prefecture announced on Thursday. This "highly pathogenic" outbreak was discovered in a backyard flock. The prefect of Indre-et-Loire has issued an order establishing a temporary control zone in the affected area.

https://www.francebleu.fr/infos/societe/un-deuxieme-foyer-de-grippe-aviaire-decouvert-dans-une-basse-cour-d-indre-et-loire-6203680

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Highly pathogenic avian influenza (HPAI) H5N1 in Indre-et-Loire

Updated on 18/12/2025




Situation update on highly pathogenic avian influenza (HPAI) H5N1 in France and Indre-et-Loire

Since October 22, 2025, the risk level for avian influenza has been high throughout metropolitan France.
This increased risk level follows the confirmation of several outbreaks in poultry farms and backyard flocks.
Furthermore, numerous cases have been confirmed in wild birds since mid-October.

More specifically, in Indre-et-Loire:

- 3 cases have been confirmed in wild animals since mid-November, in Civray-sur-Esves and Le Louroux
- 2 backyard flocks have been confirmed infected in the Cussay and Truyes areas since December 13.

The high risk level necessitates strict preventative measures across the entire country .

These specific health measures are detailed on the website of the Ministry of Agriculture, Food and Food Sovereignty and are accessible at the following address: https://agriculture.gouv.fr/influenz...s-particuliers

In particular, all poultry owners, both private individuals and professionals, must shelter their animals.

In addition, two regulated zones have been put in place around the infected backyards to avoid any risk of the virus spreading to farms.

It is essential that everyone be particularly vigilant and adhere to the prescribed measures listed above and the biosecurity rules.

Each operator must also regularly monitor the health of their birds and immediately alert either their veterinary inspector or the DDPP ( Departmental Directorate for the
Protection of Populations) to the appearance of clinical symptoms or drops in production.

As part of the monitoring of wild bird mortality , the discovery of dead wild birds must be reported to the SAGIR monitoring network: +33 2 47 26 80 13 or +33 2 47 05 65 25.

To limit the spread of the virus, stay on marked trails, do not approach wild birds, and do not feed them. Also avoid contact with feathers and droppings.

All poultry owners must register either at the town hall or on the following website: https://mesdemarches.agriculture.gou...za-aviaire-498

As a reminder, avian influenza is not transmissible to humans through the consumption of poultry meat, eggs, or any other food product. The measures implemented are primarily aimed at limiting the spread of the virus within wild birds and poultry farms.

For more information:
- https://agriculture.gouv.fr/tout-ce-...luenza-aviaire
- Frequently Asked Questions: https://agriculture.gouv.fr/linfluen...-aux-questions

https://www.indre-et-loire.gouv.fr/Actions-de-l-Etat/Animaux/Influenza-aviaire-hautement-pathogene-IAHP-H5N1-en-Indre-et-Loire

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A fourth case of highly pathogenic avian influenza (HPAI) has been confirmed in Deux-Sèvres.

Last updated on December 17, 2025

Following the declaration of a new outbreak of highly pathogenic avian influenza in the municipality of LARGEASSE, a new regulated zone is being put in place.
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https://cmds.chambres-agriculture.fr/actualites-1/actualite/un-quatrieme-cas-dinfluenza-aviaire-hautement-pathogene-iahp-est-confirme-en-deux-sevres

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AVIAN INFLUENZA

Updated on 17/12/2025



-> All information from the Ministry of Agriculture:

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https://agriculture.gouv.fr/tout-ce-...luenza-aviaire

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IMPORTANT! In response to the increase in cases of highly pathogenic avian influenza (HPAI), the risk level has been raised to "high" as of October 22, 2025. See the press release of November 20, 2025 here.

The situation in France on the MASA website:
https://agriculture.gouv.fr/influenz...tion-en-france

SUMMARY:

- The current situation
- Current regulations
- Request for exemption from the ban on the movement of poultry and poultry products from regulated areas (LPS)

- Biosecurity measures for hunters
- Measures to be applied in poultry yards

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The situation as of 15/12/2025:

November 19, 2025: Declaration of an outbreak in the municipality of Mauléon and establishment of a regulated zone

The Qualyse laboratory confirmed today the infection by a highly pathogenic avian influenza virus of a farm located in the town of Mauléon.

This farm had been under surveillance since the previous day due to the existence of an epidemiological link with a farm in Vendée that had been declared an outbreak site.
In order to protect other farms, a protection zone (ZP) including the western part of the municipality of Mauléon and a surveillance zone (ZS) including the eastern part of the municipality of Mauléon and the municipalities of La Petite-Boissière, Saint-Amand-sur-Sèvre, Saint-Pierre des Echaubrognes are being put in place from today.
Below you will find the prefectural decree 2025 03062 defining these zones and the applicable measures.

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November 20, 2025: Declaration of an outbreak in Voulmentin and establishment of a regulated zone

Following the declaration of an outbreak of highly pathogenic avian influenza in the municipality of Voulmentin, a new regulated zone is being put in place.

The protection zone covers the South of the municipality of Voulmentin, the Northwest of the municipality of Bressuire and the Southeast of the municipality of Nueil-les-Aubiers.

The surveillance zone covers the municipalities of Argentonnay, Bretignolles, Cirières, Le Pin, Saint-Aubin-du-Plain, Saint-Maurice-Etusson, the northern part of the municipality of Voulmentin, the southeastern part of the municipality of Bressuire, the northwestern part of the municipality of Nueil-les-Aubiers, and the eastern part of the municipality of Mauléon. The eastern part of the municipality of Mauléon is already covered by the regulated zone linked to the first outbreak (Prefectural Order 2025 03062 of November 19, 2025).

Below you will find the prefectural decree no. 2025 03080 of November 20, 2025 determining the regulated zone and the applicable measures.

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20/11/2025: Lifting of the surveillance zone put in place following the outbreak in Rives-d'Autize (see information from 21/10/2025)

All scheduled surveillance visits within the regulated perimeter defined around the Rives-d'Autise outbreak having been successfully carried out by the veterinary health officers, with favorable results, the surveillance zone is lifted as of today.

On 21/10/2025: a surveillance zone was established following the declaration of an outbreak in Rives d'Autize (85)

The Environment and Food Laboratory of Vendée has confirmed the infection by a Highly Pathogenic H5 AI virus of a farm located in Rives d'Autise.
After the infected backyard poultry discovered in Marans and Vix, this outbreak is the third in less than 5 days in the same geographical area.

From today, protection zones are being put in place around the Vix poultry yard and the Rives d'Autise farm, as well as a coalescent surveillance zone which includes several municipalities in Deux-Sèvres: Ardin, Coulonges-sur-l'Autize, Saint-Maixent-de-Beugné, Saint-Pompain, Villiers-en-Plaine.

Below you will find the prefectural decree 2025 02790, signed today, defining these zones and the applicable measures.

25/11/2025: Declaration of an outbreak in Clessé and establishment of a regulated zone

Following the declaration of an outbreak of highly pathogenic avian influenza in the municipality of Clessé, a new regulated zone is being put in place.

The protection zone covers the West of the municipality of Amailloux, the South of the municipality of Boismé, the Northeast of the municipality of La-Chapelle-Saint-Laurent, the Southwest of the municipality of Chiché, the North of the municipality of Clessé.

The surveillance zone covers the municipalities of Andilly, Bressuire, Chanteloup, Faye-l'Abbesse, Largeasse, Maisontiers, Neuvy-Bouin, Pougne-Hérisson, Saint-Aubin-le-Cloud, Saint-Germain-de-Longue-Chaume, Trayes, as well as parts of the municipalities of Amailloux, Boismé, La-Chapelle-Saint-Laurent, Chiché, Clessé, and Moncoutant.
The eastern part of the municipality of Mauléon is already covered by the regulated zone linked to the first outbreak (Prefectural Order 2025 03062 of November 19, 2025).

Below you will find the prefectural decree no. 2025 03080 of November 20, 2025 determining the regulated zone and the applicable measures.


December 3, 2025: Implementation of an additional biosecurity measure in the supplementary regulated area

A measure is added to those already in place in the vast additional regulated area which covers all 4 departments of the poultry production area of the greater West.

This measure includes:

- in terms of biosecurity: measures are taken to reduce the risk of the spread of feathers or down from any vehicle transporting live poultry of any species, from a regulated area for HPAI or from a municipality belonging to an area at risk of spread.

This measure consists of covering the vehicle, in compliance with animal welfare standards, or any equivalent device.

Below you will find the prefectural decree 2025 03207 defining the additional regulated zone and the applicable measures.

December 4, 2025: Changes to the additional measures planned in the supplementary regulated zone

Prefectural Order 2025-03207, published today, reiterates the measures stipulated in Order 2025-03082 of November 20, 2025, and adds to Article 2 a further biosecurity measure concerning the transport of live poultry: measures must be taken to reduce the risk of feather or down dispersal from any vehicle transporting live poultry departing from a regulated area for HPAI or from a municipality located in an area at risk of dispersal. This measure consists of covering the vehicle, in accordance with animal welfare standards, or any equivalent measure.

Below you will find decree 2025 03207 determining the additional zone and the applicable measures.

12/12/2025: Lifting of the protection zones put in place following the outbreaks in Mauléon (information from 19/11/2025) and Voulmentin (information from 20/11/2025)

All scheduled surveillance visits within the regulated perimeters defined around the outbreaks in Mauléon and Voulmentin having been successfully carried out by the veterinary health officers, with favorable results, the protection zones are lifted as of today.

The territories previously covered by these protection zones are now integrated into the corresponding surveillance zones.

Below you will find the prefectural decrees 2025 03282 and 2025 03284 lifting the protection zones and defining the new protection zones.

December 15, 2025: Declaration of a outbreak in the municipality of Largeasse and establishment of a regulated zone

The Qualyse laboratory confirmed today the infection by a highly pathogenic avian influenza virus of a farm located in the commune of Largeasse.

The suspicion had been reported on the same day by the farm's veterinary health officer who had noted alarming signs (significant decrease in drinking water, decreased reactivity of the poultry...).

In order to protect other farms, a protection zone (ZP) including the municipalities of Largeasse, L'Absie, Trayes and Vernoux-en-Gâtine and a surveillance zone (ZS) including the municipalities of L'Absie, Le Busseau, Chanteloup, La Chapelle Saint Laurent, Beugnon-Thireuil, Clessé, Fénery, La Forêt sur Sèvre, Largeasse, Moncoutant sur Sèvres, Neuvy-Bouin, Pougne-Hérisson, Saint Aubin le Cloud, Saint Paul en Gâtine, Scillé, Secondigny, Trayes, Vernoux en Gâtine are being put in place from today.


Below you will find the prefectural decree 2025 03356 defining these zones and the applicable measures.

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November 20, 2025: Implementation of an additional regulated zone across all departments of the greater western production area

Given the rapidly evolving health situation in the poultry production area of western France and the need for coordination between departments 44, 49, 79, and 85, the
Directorate General for Food, after consulting with poultry industry organizations, has requested the implementation of additional management measures. These measures fall within a large, additional regulated zone covering all four departments.

These measures include:
- Regarding biosecurity: the prohibition of allowing vaccinated ducks to roam freely on suitable routes, as well as the requirement for a single removal for any movement of a batch of ducks or turkeys within protection zones.
- in terms of surveillance : the obligation of virological screening before any movement of waterfowl and turkeys when they are transferred between farms.
- Regarding vaccination : the obligation of a booster vaccination 3 to 4 weeks after the 2nd dose of primary vaccination for ducks intended to stay more than 10 weeks in areas at risk of spread (ZRD) and regulated areas following a declaration of infection.
These measures may be lifted on December 31, 2025, subject to the evolution of the health situation.
Below you will find the decrees determining the additional regulated zone and the applicable measures.
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December 17, 2025

https://www.deux-sevres.gouv.fr/Actions-de-l-Etat/Alimentation-consommation-animaux/Influenza-aviaire/INFLUENZA-AVIAIRE