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In 2001, Megan Ryan, 46, was diagnosed with common variable immunodeficiency (CVID), one of the most common types…

It is often said that you have to understand the root cause of a problem before you try to fix it. I’m not…

By Jen Christensen | CNN In the HBO show “The Last of Us,” characters identify zombies among them by the fungi that…

In the HBO show "The Last of Us," characters identify zombies among them by the fungi that bursts from their…

Around this time last year, my young daughter caught chickenpox. I thought it was a standard case of a normal…

When Dr David Strain encountered a 64-year-old patient on his ward round, the British geriatrician had a bleak…