Weaning is among the most stressful periods in a beef production system for calves because they are subjected to stressors including removal from their mothers, new diets, processing (vaccination, dehorning, castration etc.) and possibly new environments.

Horse shows are a part of Western heritage, but at all horse gatherings there is a risk of spreading disease. Respiratory, gastrointestinal, neurologic and skin diseases, can be spread at shows. A control plan should be in place at each show to help minimize the spread of disease.

In 1999, West Nile virus was first discovered in the northeastern United States. Clinical disease caused by the virus was first identified in birds, followed by humans and equines. By 2002, over 15,000 horses were diagnosed in more than 41 states.