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#Argentina - High pathogenicity avian #influenza #H5 viruses (#poultry) (Inf. with) - Immediate notification


The event occurred in a laying hen farm in the province of Buenos Aires. The birds involved showed mortality and clinical signs consistent with high pathogenicity avian influenza. The suspicion is officially addressed and samples were taken. The samples tested positive for HPAI H5.

The event occurred in a laying hen farm. On 17/08/25 National Service of Agri-Food Health and Quality (SENASA) received a notification concerning mortality and clinical signs consistent with high pathogenicity avian influenza (HPAI) (drooping and diarrhea). The suspicion is officially addressed, with restriction of the establishment and taking of samples for diagnosis. On 19/08/2025, samples tested positive for HPAI H5. The stamping out of all the birds in the establishment will be carried out. We will update the population data in the following follow-up reports.

Source: WOAH, https://wahis.woah.org/#/in-review/6737

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