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Two bird flu vaccines tested in ducks are “very effective” in France

Two bird flu vaccines tested in ducks are “very effective” in France

Two vaccines tested in France against bird flu They were “very effective” in protecting mulard ducks, bred to make foie gras, the Anses health agency told AFP on Thursday.

The “favorable results provide sufficient guarantees to launch a vaccination campaign starting in the fall [boreal] of 2023”, pointed out for his part the Department of agriculture in his web page.

because of the bird flumore than 20 million birds were slaughtered in France in 2021-2022 and more than six million in 2022-2023.

Last year they began to test in France two web-footed vaccines, produced by the laboratories boehringer ingelheim and Ceva Santé Animale. Vaccines with other bird species were experimented in other European countries.

With the vaccination“very little excretion of the virus was found in the inoculated animals”, explained to AFP Béatrice Grasland, head of the Anses national reference laboratory for avian influenza Ploufragan-Plouzané-Niort.

The two vaccines had “very similar” results and “almost stopped direct transmission” and “suppressed” indirect transmission, by air, he indicated, assessing 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 droppings” of infected ducks.

Ducks are highly sensitive to the virus and shed it into the environment even before showing symptoms, contributing to a silent spread of the disease.

Where is avian flu spreading?

The bird flu It is also expanding in Latin America, where cases have been reported since October of last year, in countries such as Mexico, Honduras, Guatemala, Panama, Venezuela, Uruguay, Paraguay or Argentina.

In Brazil, the health authorities declared a state of “animal health emergency” last Monday after confirming 8 cases in wild animals, in order to prevent the virus from reaching the production of farmed birds.

In Chile, bird flu killed almost 9,000 marine animals this year, according to data from the National Fisheries Service released Thursday.

(With information from AFP)

Source: Gestion

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