Bird flu (H5N1) has been detected in an area of Békés County, Hungary, affecting nearly 2,000 mallard ducks despite the lack of observed symptoms. Authorities have implemented measures to control the epidemic and have introduced restrictions and mandatory swab tests for waterfowl in nearby counties and across the country. The disease has also been found in captive birds in Budapest, underscoring the role of wild birds in spreading the virus and emphasizing the importance of ongoing epidemic prevention efforts.