April 23, 2007 -- A stomach bacterium that causes ulcers and is linked to stomach cancer may make asthma less likely.
That news appears in the Archives of Internal Medicine.
The bacterium is called Helicobacter pylori (H. pylori). It is associated with ulcers and increased risk of stomach cancer.
H. pylori is found worldwide, but it's more common in developing countries, note Yu Chen, PhD, MPH, and Martin Blaser, MD.