Weak calf syndrome (WCS) is a herd problem. It typically describes calves that are born alive, but lack normal vigor. As a result, many of these calves die shortly after birth. Affected calves often cannot stand or nurse by themselves. It is difficult to correct a WCS problem during the current calving season once it has been identified. In most cases, there are multiple factors contributing to WCS during gestation including suboptimal dam nutrition, mineral deficiencies, and infectious diseases.