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Bird flu kills scores of sea lions in Argentina

Scores of sea lions have died from bird flu in Argentina, officials said Tuesday, as an unprecedented global outbreak continues to infect mammals, raising fears it could spread more easily among humans.

Mutation accessibility fuels influenza evolution

The influenza (flu) virus is constantly undergoing a process of evolution and adaptation through acquiring new mutations. Scientists at St. Jude Children's Research Hospital have added a new layer of understanding to explain ...

Around 2,000 penguins wash up dead on Uruguay coast

Around 2,000 penguins have appeared dead on the coast of eastern Uruguay in the last 10 days, and the cause, which does not appear to be avian influenza, remains a mystery, authorities said.

How the flu virus hacks our cells

Influenza epidemics, caused by influenza A or B viruses, result in acute respiratory infection. They kill half a million people worldwide every year. These viruses can also wreak havoc on animals, as in the case of avian ...

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