In this video, Motley Fool health-care analyst David Williamson talks about some of the biggest investing stories in the health-care space today. He tells us about Pfizer (NYSE: PFE) and Bristol-Myers Squibb's (NYSE: BMY) latest European victory, a major insurance win for obesity-drug maker VIVUS (NASDAQ:VVUS), a huge vote of share-price confidence for Sarepta (NASDAQ: SRPT) and its drug for Duchenne muscular dystrophy, and a big tumble for St. Jude Medical (NYSE: STJ) after another problem with one of its products.

Brenton Flynn owns shares of Sarepta Therapeutics. David Williamson owns shares of Pfizer. The Motley Fool owns shares of St. Jude Medical. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.