Two bird flu vaccines tested in France were very effective in ducks

Updated May 26, 2023
Due to bird flu, more than 20 million birds were slaughtered in France between 2021 and 2022, and more than six million between 2022 and 2023, AFP reported. With vaccination, "very little excretion of the virus was found in the inoculated animals", explained the head of the Anses national reference laboratory for avian influenza, Ploufragan-Plouzané-Niort, Béatrice Grasland.
The two vaccines had "very similar" results and "almost stopped direct transmission" and "suppressed" indirect transmission, by air, he specified when describing the method as "very effective" According to the specialist, the vaccinated ducks presented a "very good level of protection (...) even in direct contact, in the same park, with infected duck droppings." Ducks are highly sensitive to the virus and excrete it into the environment even before showing symptoms, contributing to a silent spread of the disease, they explained. Last year they began testing two web-footed vaccines in France, produced by the Boehringer Ingelheim and Ceva Santé Animale laboratories. In other European countries they also experimented with vaccinations with other bird species. In addition, avian influenza is spreading in Latin America, where, since October of last year, cases have been reported in Mexico, Honduras, Guatemala, Panama, Venezuela, Uruguay, Paraguay and Argentina. In Chile, bird flu ...
By clicking “Accept Cookies,” I agree to provide cookies for statistical and personalized preference purposes. To learn more about our cookies, please read our Privacy Policy.