Medpundit links to a couple of websites that tries to get behind the often inadequate health reporting by major media
The first is Behind the Medical Headlines:

Welcome to Behind the Medical Headlines, which has been developed by the Royal College of Physicians of Edinburgh and the Royal College of Surgeons of Edinburgh, to provide authoritative and independent expert commentaries on topical medical matters reported in the international media.

Next is Media Doctor:

Media Doctor reviews current news items about medical treatments, assesses their quality using a standardised rating scale and presents reviews of good and bad examples of reports on this web site. It is anticipated that these independent and objective critiques will improve journalistic practices in reporting new medications and treatments in Australia.