France has had to slaughter over 26 million birds due to bird flu outbreaks between 2021 and 2023. However, recent trials of two new vaccines have shown promising results, with vaccinated animals excreting minimal virus and experiencing reduced direct and indirect transmission. These vaccines have been effective in protecting ducks against the virus, even when in close contact with infected droppings. The trials have been supported by similar experiments in other European countries, as bird flu continues to spread across the continent and Latin America, causing significant losses in marine life and prompting concerns about the impact on farmed birds.