Analysis: Key warning signs about bird flu are all going in the wrong direction

Key warning signs about bird flu are all going in the wrong direction This year has been marked by concerning developments in the virus’ spread, including widespread detections in wastewater and mutations observed in the virus. NBC News

...No bird flu transmission between humans has been documented, and the CDC maintains that the immediate risk to public health is low. But scientists are increasingly worried, based on four key signals.

For one, the bird flu virus — known as H5N1 — has spread uncontrolled in animals, including cows frequently in contact with people. Additionally, detections in wastewater show the virus is leaving a wide-ranging imprint, and not just in farm animals.

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