Pfizer's vaccine for Clostridium difficile (C. diff) looks like it may join a growing list of candidates that have been shelved or delayed, after the shot failed to meet its primary objective in a ...

“In fact, the bacterium that causes the disease, Clostridium perfringens, is ever-present in the environment and the digestive tract of calves. The bacteria, C. perfringens Type C in nursing-age ...