How to contain avian flu H5N1 if human-to-human spread begins

At this point, avian flu H5N1 is thought to have very limited ability to transmit between humans, but a recent case in British Columbia with an unknown source of transmission has piqued the curiosity and concern of scientists, ...

Can marijuana cause lung cancer?

As more states legalize marijuana, many people might be wondering if that means it is safe to use. While smoking tobacco is a known and well-studied cause of lung cancer, linking marijuana to cancer is more complicated, says ...

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