Bird flu outbreak worsens

This is a U.S. news story, published by NBC News, that relates primarily to Hensley news.

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first severe bird flu infection

NBC News

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

Summary

Nutrition label

86% Informative

Since April , at least 64 people have tested positive for H5N1, the first U.S. cases other than a single infection in 2022 .

Virus has spread uncontrolled in animals, including cows frequently in contact with people.

Virus is evolving to better fit human receptors and that it will take fewer mutations to spread among people.

The more people infected, the more possibility mutations could occur, experts say.

About 19% of the sites in the CDC ’s National Wastewater Surveillance System reported positive detections earlier this month .

Virus fragments found came from animal or human sources; some could have come from wild bird excrement that enters storm drains.

Virus samples showed evidence of mutations that could make it more amenable to spreading between people, experts say.

Hensley ’s lab in May reported that one mRNA vaccine candidate offered protection against the virus to ferrets during preclinical testing.

Another candidate under development by the CDC and Moderna has also showed promising results in ferrets, which are often used as a model for humans to study influenza.

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Informative language

Neutral language

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formal

Language

English

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not offensive

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not hateful