France has launched a duck vaccination campaign to combat avian flu, but the United States, Canada, and Japan have closed their borders to French ducks, poultry, and hatching eggs due to concerns about vaccinated animals carrying the virus. However, the economic impact may be limited as live poultry and egg shipments to these countries only make up 1% of France's total exports. The industry professionals believe that the health diplomacy efforts carried out with these countries will help to alleviate concerns and prevent further closures.