Scientists Study Why Bird Flu Kills Some Animals, Not Others — VOA Learning English
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Researchers are seeking to learn why bird flu kills some animals quickly but causes only moderate illness in others.
In recent years, bird flu is believed to have killed millions of wild and domestic birds worldwide. Other animals such as seals, cats, dogs and cows have also been infected.
The virus is officially known as H5N1. It has largely stayed out of the human population. However, the World Health Organization (WHO) reported that as of April 1, 2024, H5N1 had caused nearly 900 human infections and 463 deaths since 2003.
Most of the human cases involved direct contact between people and infected birds. In cases of the virus spreading between humans, individuals involved were found to have…
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