Birds’ annual migration back to the northern hemisphere is likely to bring a new wave of H5N1—for both animals and humans.
. All along bird-migration routes, which criss-cross North America, Europe and Asia, infection risk could increase. Not only for other birds—including domestic flocks of chickens, ducks and turkeys—but also for the growing number of mammal species that have caught bird flu. Foxes. Bears. Sea lions. Minks. Pigs. “Increased migration is definitely a concern,” James Lawler, an infectious disease expert at the University of Nebraska Medical Center, told The Daily Beast.
Last year saw a period of overlapping viral outbreaks—COVID, monkeypox, even polio—so you might not have noticed the bird flu outbreak that seems to have begun in mid-2021 but really accelerated in January 2022. First, an 80-year-old British man came down with the bird flu after exposure to wild ducks. Next, the U.S. Department of Agriculture detected H5N1 in domestic chicken flocks in the United States.
Egg prices in the U.S. have finally begun to fall as the industry recovers from the 2022 culls. The average price for a dozen eggs. It dropped fast in January and February to an average of around $2.40. But now the 2023 bird migration threatens more viral spread and potentially more bird deaths. The price of eggs is inching up again.
Maybe. “We just don’t know enough to accurately predict” the risk of a major bird flu mutation, Lawler stressed. But experts and officials disagree on how to do that. Widespread vaccination would help, of course. But while several human bird flu vaccines are in development, none are ready for human trials—to say nothing of being ready for approval by the U.S. Food and Drug Administration or regulators in other countries. Even under the most optimistic scenario, it’ll be years before people can get a bird-flu jab.prevent the virus from spreading flock to flock.
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