France has increased its risk level for avian influenza to 'high' following multiple outbreaks in poultry farms.

The government is enforcing immediate measures such as confinement of poultry and mandatory vaccination in larger duck farms.

The highly contagious virus can be spread by migratory birds and can devastate flocks.

Additional security measures are being implemented to prevent further spread of the disease.

The foie gras industry, heavily reliant on holiday sales, has introduced new sanitary measures and the option to vaccinate ducks against bird flu.

There will be a reduced supply of foie gras this holiday season due to limited supply and higher prices.