Argentina - Bird flu in poultry 2025-2026

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Buenos Aires: An outbreak of avian influenza has been recorded in commercial poultry.


SENASA confirmed the positive result in a heavy breeding establishment located in the Bolívar district.

March 7, 2026

The National Service for Agrifood Health and Quality (SENASA) detected a new case of highly pathogenic avian influenza (HPAI) H5 in a poultry establishment -heavy parent breeders- located in the district of Bolívar, province of Buenos Aires, after the analysis of samples carried out in its National Laboratory.

SENASA immediately activated the measures outlined in its contingency plan and established a Sanitary Control Zone (SCS), consisting of a 3 km perimeter area around the outbreak and a 7 km surveillance zone around it . Within this radius, containment, biosecurity, movement restriction, monitoring, and epidemiological tracing efforts are being intensified to identify other production units in the area and potential epidemiological links.

To contain the disease and prevent its spread, SENASA agents in the jurisdiction will oversee the depopulation and final disposal of the birds, followed by the application of hygiene and disinfection measures on the premises , in accordance with Resolution No. 466/2025 . The Argentine Service will officially notify the World Organisation for Animal Health (WOAH) of the situation to report the actions implemented to date.

Prevention and immediate notification

With the aim of minimizing the risk of spreading AIAP, poultry establishments must strengthen the sanitary management, hygiene and biosecurity measures established in Resolution No. 1699/2019 , among which the following stand out:

Periodically check the integrity of the bird netting; ensure proper cleaning and disinfection of vehicles and supplies entering the premises; increase hygiene in areas where fecal matter from wild birds -carriers of the virus- may accumulate; and eliminate or reduce the presence of stagnant water that may attract these species.

In the case of backyard poultry owners (domestic, non-commercial), it is suggested to keep the animals in protected spaces that prevent contact with wild birds; use clothing exclusively for handling tasks; clean and disinfect the facilities periodically; and prevent wild birds from accessing water and food sources in the chicken coops.

Upon observing bird mortality or neurological, digestive, and/or respiratory symptoms, all parties involved in poultry handling must immediately notify SENASA at the nearest office (by phone or in person); via WhatsApp at (11) 5700 5704 ; by email to notificaciones@senasa.gob.ar ; or through the "Notify SENASA" form available on the official website. For more information about the disease, visit the official avian influenza microsite .

https://www.argentina.gob.ar/noticias/buenos-aires-se-registro-un-brote-de-influenza-aviar-en-aves-comerciales

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/https://en.wikipedia.org/wiki/Formosa,_Argentina
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Formosa News
2h
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👉Municipal workers came across a striking scene this morning during their usual tasks: more than 80 dead chickens were found in the middle of Avenida de los Constituyentes, in the Juan Domingo Perón neighborhood.

The strange discovery generated surprise and concern among the residents of the area, who alerted authorities to the situation after observing the large number of dead birds on the public road.

The causes of what happened and how the animals got to that place are currently unknown, so the event caught the attention of those passing through the area.

https://www.facebook.com/NoticiasFormosa/posts/-trabajadores-municipales-se-encontraron-esta-ma%C3%B1ana-con-una-escena-llamativa-du/1336492028511429/

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Mystery on Circuit Five: More than 80 dead chickens appear and nobody knows why.

Municipal workers found the dead birds on Constituyentes Avenue, in the Juan Domingo Perón neighborhood. The strange incident surprised residents, and the cause is still unknown.

March 11, 2026

The dead chickens were discovered by municipal workers making their usual rounds in the area.

An unusual and disconcerting scene surprised municipal workers Wednesday morning as they carried out their usual tasks in the northern part of the city. On Avenida de los Constituyentes, near the Juan Domingo Perón neighborhood, more than 80 dead chickens were found in the middle of the street.

The strange discovery quickly caught the attention of the residents of the area, who, upon noticing the large number of dead birds, alerted the authorities and began to wonder what could have happened.

As could be observed at the scene, the chickens were scattered along the avenue, which surprised those who were passing through the area during the early hours of the day.

So far, it has not been established how the animals got to that point or what the causes of their death were, which further fuels the mystery surrounding the episode.

The incident has generated concern among residents of the neighborhood, who hope that what happened can be clarified and it can be determined whether it is an isolated case or if there is any kind of health risk.

For now, the appearance of the more than 80 dead chickens in the middle of the avenue remains shrouded in mystery.

https://www.elcomercial.com.ar/51843-misterio-en-el-circuito-cinco-aparecen-mas-de-80-gallinas-muertas-y-nadie-sabe-por-que

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Río Negro: Detection of a case of avian influenza in backyard birds


SENASA confirmed the positive diagnosis in a multi-species backyard poultry farm located in the town of Cervantes

March 13, 2026

The National Agri-Food Health and Quality Service (SENASA) registered an outbreak of highly pathogenic avian influenza (HPAI) H5 in a backyard poultry farm in the town of Cervantes, Río Negro province

The SENASA Official Laboratory in Martinez processed the samples and confirmed the positive result , after receiving notification of deaths and symptoms compatible with the disease in chickens, geese, ducks and turkeys on the property located in the Upper Valley of Rio Negro.

Immediately, SENASA delimited the corresponding prevention area (PA) around the outbreak , where biocontainment measures and an epidemiological sweep are carried out, to visit the properties included in the area and determine possible epidemiological links.

Given the risk of the virus being introduced, all nearby poultry establishments must reinforce their sanitary management, hygiene and biosecurity measures, which are necessary and mandatory to reduce the risk of the virus entering their establishments, in accordance with Senasa Resolution No. 1699/2019.

Those with backyard poultry farms should keep their birds in protected areas to avoid contact with wild birds ; use dedicated work clothes; regularly clean and disinfect their facilities; and restrict access of wild birds to water and food sources in family chicken coops.

Upon observing bird mortality or neurological, digestive, and/or respiratory symptoms, all parties involved in poultry handling must immediately notify SENASA at the nearest office (by phone or in person); via WhatsApp at (11) 5700 5704 ; by email to notificaciones@senasa.gob.ar ; or through the "Notify SENASA" form available on the official website. For more information about the disease, visit the official avian influenza microsite

https://www.argentina.gob.ar/noticias/rio-negro-deteccion-de-un-caso-de-influenza-aviar-en-aves-de-traspatio

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Health

Cervantes: Health provides preventative measures against avian flu cases

SENASA (National Service for Agrifood Health and Quality) confirmed the positive diagnosis of influenza A in a multi-species backyard poultry farm in the town of Cervantes, after receiving notification of deaths and symptoms compatible with the disease in chickens, geese, ducks and turkeys.

Date: March 16, 2026

Avian influenza is a highly contagious viral disease with a worldwide distribution.Credit: Government of Río Negro

The Ministry of Health of Río Negro, through its Epidemiology Coordination and Zoonosis Department, is maintaining a registry of exposed individuals, monitoring them for the early onset of symptoms, and providing them with prevention and personal protection measures. It is also reinforcing the early detection of suspected cases.

To reinforce prevention and surveillance measures, the public is asked to avoid handling and direct contact with sick or dead birds and with surfaces that may be contaminated with saliva, mucus, or feces from wild or domestic birds. Frequent handwashing with soap and water or alcohol-based disinfectants is important.

Those with backyard properties are advised to keep their birds in protected spaces to avoid contact with wild specimens; use dedicated work clothes; regularly clean and disinfect their facilities; and restrict access of wild birds to water and food sources in family chicken coops.

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The production sector is advised to reinforce the management, hygiene and biosecurity measures of their poultry farms and, upon observation of mortality, nervous, digestive or respiratory clinical signs, to immediately notify SENASA through WhatsApp 11 57005704 or by writing an email to notificaciones@senasa.gob.ar .

What is Avian Influenza?

Avian influenza is a highly contagious viral disease with a worldwide distribution that affects poultry and wild birds, caused by subtypes of Influenza A (such as H5N1, H5N3, H5N8). Wild waterfowl are important reservoirs of the virus, and poultry can become infected through contact with wild birds.

In recent years, there has been an increase in the detection of the A (H5N1) virus in terrestrial and marine mammals, both wild and domestic. Although human infections are rare, they occur mainly after direct contact with infected animals or their contaminated environments.

The disease is not transmitted through the consumption of poultry meat or byproducts, and to date, there has been no sustained human-to-human transmission. However, due to the virus's ability to evolve, monitoring infection in exposed humans is essential.

The disease can present with mild or severe symptoms, such as fever, cough, myalgia, and in more severe cases, pneumonia and multi-organ involvement.


https://salud.rionegro.gov.ar/articu...e-aviar?n=NzA4

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Alberti, Buenos Aires
/https://en.wikipedia.org/wiki/Alberti,_Buenos_Aires
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Avian flu: More than 100 birds were culled at a farm in Alberti after infected animals were detected.

March 27, 2026

The agency ordered the culling of more than 100 poultry, established a cordon of about 3 kilometers to evaluate the animals within that area, and, from a health perspective, indicated a follow-up of the people who were in contact with the animals affected by the disease.

“This morning, SENASA contacted us to confirm the detection of cases of avian flu. They have taken the necessary precautions regarding the animals, and we in the health sector will be closely monitoring the family that was in contact with the poultry. So far, no one has shown symptoms,” stated the town's mayor, Jorge Gaute, accompanied by veterinarian Roberto Murray, head of the food safety department.

Meanwhile, Murray reminded everyone that in the area the animals susceptible to infection are "domestic and wild birds," and stressed that "those who have domestic birds should handle them with caution and in the event of symptoms or a dead bird, they should contact SENASA immediately."
...

https://lanuevaverdadderauch.ar/gripe-aviar-sacrificaron-mas-de-100-aves-en-una-granja-de-alberti-tras-detectar-animales-infectados/

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Río Negro: A case of avian influenza was detected in backyard birds in Valcheta


SENASA confirmed this after analyzing samples from birds on a multi-species property. The finding does not affect the recently achieved sanitary status.

May 7, 2026

Through laboratory diagnosis, the National Service for Agrifood Health and Quality (SENASA) registered an outbreak of highly pathogenic avian influenza (HPAI) H5 in a backyard poultry farm in the town of Valcheta , province of Río Negro.

The result was confirmed after receiving notification of deaths and symptoms consistent with the disease in chickens and turkeys . It is important to note that, since these are backyard birds, the detection does not affect Argentina's recently achieved status as a country free of HPAI, nor does it disrupt trade operations.
Upon the discovery, SENASA established the corresponding prevention area (PA) around the outbreak, where biocontainment and tracing measures are implemented, with the aim of verifying the presence of properties included in the area and determining possible epidemiological links.

To reduce the risk of entry and spread of the virus, SENASA calls on all poultry establishments to reinforce their sanitary management, hygiene and biosecurity measures, in accordance with Resolution No. 1699/2019.
Those who keep backyard birds (domestic, non-commercial) must keep them in protected spaces to avoid contact with wild birds; use dedicated work clothes; regularly clean and disinfect their facilities; and restrict access of wild birds to water and food sources in family chicken coops.

Furthermore, all actors involved in the production, handling and ownership of domestic and wild birds are reminded that it is essential to immediately notify the National Service of any suspected HPAI.

Therefore, if high mortality or respiratory, digestive, or neurological signs are observed, SENASA should be notified immediately at its nearest office (in person or by phone); via WhatsApp at (11) 5700–5704; by email at notificaciones@senasa.gob.ar ; or through the "Notify SENASA" web form. For more information, visit the avian influenza microsite.

https://www.argentina.gob.ar/noticias/rio-negro-se-detecto-un-caso-de-influenza-aviar-en-aves-de-traspatio-en-valcheta

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wahis.woah.org/#/in-review/7291