Bird flu vaccines for laying hens prove effective in practice

Bird flu vaccines for laying hens are effective in practice, the Dutch government said on Tuesday, while confirming plans to vaccinate poultry against the virus that ravaged flocks around the world and is raising fears about human transmission. Highly pathogenic avian influenza, commonly called bird flu, has killed or caused the culling of hundreds of millions of poultry globally in recent years, most of them laying hens, which sent egg prices rocketing.

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