Science and technology | Avian flu
A second human case of bird flu in America is raising alarm
How close is the H5N1 outbreak to becoming the next pandemic?
![Dairy cows walk back to the barn after milking at a farm.](https://cdn.statically.io/img/www.economist.com/cdn-cgi/image/width=1424,quality=80,format=auto/content-assets/images/20240525_STP508.jpg)
Editor’s note (May 31st 2024): Since this piece was published a third farm worker has been identified with H5N1
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This article appeared in the Science & technology section of the print edition under the headline “Is an H5N1 pandemic brewing?”
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