End of bird flu? Although this virus, currently circulating in France and around the world, wreaks havoc on poultry farms every year, a solution could be found. Two vaccines tested in France have proven effective. “very efficient” to protect mule ducks raised for foie gras from the virus, the National Agency for Food Safety, Environment and Occupational Health (Anses) said.
Therefore, national vaccination can be carried out within a few months, as confirmed by the Minister of Agriculture on his website. OUR “the favorable results provide sufficient guarantees to launch the vaccination campaign from autumn 2023”he announced.
The experiment started last year
An experiment was started in France last year around two waterfowl vaccine candidates developed by the Boehringer Ingelheim and Ceva Santé Animale laboratories. Several thousand ducks, vaccinated or not, took part in this test campaign. At the end of the process, they were euthanized.
The virus was inoculated into some previously vaccinated animals to measure how much virus they shed and whether they could still infect their own brethren. “Vaccination resulted in very little virus shedding in vaccinated animals”whether by the respiratory or digestive tract, summed up Beatrice Grasland, head of the ANSES national reference laboratory for avian influenza Ploufragan-Plouzané-Niort.
Both vaccines with results “very similar”eat too “live almost stopped” AND “cancelled” indirect transmission, by air. “It’s very efficient”summarized Beatrice Graslan, noting “very good level of protection” vaccinated ducks “even with direct contact, in the same paddock, with droppings” with infected ducks.
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The recurrence and scale of the avian influenza crises (over 20 million poultry slaughtered in 2021-2022 in France, already over six million in 2022-2023) convinced European countries to present a vaccination strategy. Along with the French experiment, European neighbors are testing vaccines on other types of poultry.
While since the beginning of May the virus has been spreading again in dozens of farms in the southwest, in particular in Geres, after a month and a half lull, France plans to vaccinate ducks as a priority (such as mulards, but also Peking and Barbary (the latter are more likely to be grown for meat) because of them “special role” in epizootic dynamics.
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