Experts and farmers say the prevalence of the virus in the wild signals that record outbreaks will not abate soon on poultry farms, ramping up threats to the world’s food supply
Avian flu has reached new corners of the globe and become endemic for the first time in some wild birds that transmit the virus to poultry, according to veterinarians and disease experts, who warn it is now a year-round problem.
Egg prices set records after the disease last year wiped out tens of millions of laying hens, putting a staple source of cheap protein out of reach to some of the world’s poorest at a time the global economy is reeling from high inflation. Poultry in the Northern Hemisphere were previously considered to be most at risk when wild birds are active during spring migration. Soaring levels of the virus in a broad range of waterfowl and other wild birds mean poultry now face high risks year round, experts said.
Vaccinations are not a simple solution: they may reduce but not eliminate the threat from the virus, making it harder to detect its presence among a flock. Still, Mexico and the EU are among those vaccinating or considering shots. Such infections of “resident” birds are helping the virus to persist throughout the year when it didn’t previously, he said.
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