Hungary's chief veterinarian has ordered that all poultry must be kept inside to avoid the spread of the bird flu virus.
According to Reuters, the disease has so far spread to 11 counties and more than 3 million birds have been culled.
The food safety authority NEBIH said that the aim was to limit the possibility of contact between wildfowl and poultry stock.
Since the outbreak of bird flu in Hungary last year the virus has been detected in 83 wildfowl.
The Hungarian government has said it would seek European Union support to tackle the economic fallout from bird flu outbreaks.