A few weeks ago,Nature reported the sequence of Helicobacter pylori, which is present in up to one in three people and causes peptic ulcers. But many other chronic diseases or cancers are also thought to be caused by infectious agents. Weight is now lent to this theory by two studies that link coronary heart disease to the bacterium Chlamydia pneumoniae, and the implications of these findings are discussed.
- John Danesh
- Robert Newton
- Valerie Beral
