By ERIC SCHWARTZ A University of Arizona researcher has filed for a patent for a treatment that may help slow or even stop fatal heart failure - and provides strong scientific evidence that cardiovascular health is a function of the immune system.

DES MOINES, Iowa - A University of Iowa study released Thursday said children living on hog farms are more likely to have asthma. The prevalence of asthma is even more dramatic among children living on hog farms where antibiotics are added to feed, said the study's author Dr. James A.