Argentina Faces New Bird Flu Outbreak, Halts Poultry Exports
Argentina is grappling with a new outbreak of highly pathogenic avian influenza (HPAI), prompting the immediate suspension of poultry product exports to countries with which it has disease-free status agreements. The outbreak, confirmed on February 24, 2026, affects a commercial breeding farm in Ranchos, Buenos Aires Province, located approximately 120 kilometers southwest of the capital city.
Details of the Outbreak
The National Service for Agri-Food Health and Quality (SENASA) reported increased mortality at the farm, with 694 bird deaths and clinical signs consistent with HPAI. Subsequent laboratory tests confirmed the presence of an H5 variant of the virus in the flock, which consists of approximately 30,000 birds. SENASA has initiated contingency measures, including the closure of the affected facility, isolation protocols, disinfection procedures, and the culling of the infected birds. Poultry World reports the incident involved “high mortality” among birds.
Export Suspension and Domestic Supply
In response to the outbreak, Argentina’s government officially notified the World Organisation for Animal Health (WOAH) and temporarily halted exports of all poultry products to countries with which the nation holds disease-free status agreements. Buenos Aires Times details this suspension. However, SENASA has clarified that production intended for the domestic market will continue uninterrupted, as avian influenza is not transmitted through the consumption of properly cooked poultry meat or eggs.
Previous Outbreak and Export Performance
This is not the first instance of avian influenza in Argentina recently. A previous outbreak occurred in August 2025 at another commercial establishment in Buenos Aires Province, leading to a temporary export suspension that was lifted in October 2025. Despite these challenges, Argentina experienced an eight percent year-on-year increase in poultry meat exports between January and August 2025, reaching a volume of 112,000 tonnes and generating US$155 million in revenue. The sector’s main export destinations include China, South Africa, Chile, and Hong Kong.
Regional Concerns and International Cooperation
The outbreak in Argentina coincides with heightened concerns in neighboring Uruguay. The Uruguayan Ministry of Livestock, Agriculture and Fisheries (MGAP) has declared a health emergency following the detection of H5 avian influenza in wild birds in the Canelones, Maldonado, and Rocha regions. In November 2025, Argentina and Brazil agreed on mutual recognition of their official zoning and compartmentalisation systems for avian influenza and Newcastle disease, highlighting regional efforts to manage and control the spread of these diseases.
Role of the World Organisation for Animal Health (WOAH)
The World Organisation for Animal Health (WOAH), as well known as Organización Mundial de Sanidad Animal (OMSA), plays a crucial role in monitoring and coordinating global efforts to combat avian influenza. WOAH designates Reference Laboratories, such as the National Service for Agri-Food Health and Quality (SENASA) in Argentina, to conduct scientific and technical activities related to disease diagnosis, control, and training. These laboratories provide expert advice and support to member countries in addressing animal health challenges.