In spring, sheep often die suddenly. At this time, we must pay attention to whether it is sheep epidemic disease or sheep enterotoxemia. Sheep epidemic disease and sheep enterotoxemia (also known as epidemic disease-like disease) are two acute infectious diseases that seriously harm sheep. They are caused by Clostridium putrescens and Clostridium welchii type D respectively, and their main characteristics are sudden onset and death of sheep. Epidemic characteristics: The two diseases are mainly infected through the digestive tract, generally occurring from early spring to late autumn, and sheep aged 6 months to 2 years are the most susceptible to infection. Sheep blight is prevalent in low-lying and humid areas. Shearing wool, catching a cold or reducing the body's resistance can all promote disease. Sheep enterotoxemia is more common in obese sheep, and sheep are sporadic. Preventive measures of sheep rapid blight. Prevention of sheep rapid epidemic disease: disinfect the whole flock with iodine preparation disinfectant twice a day; Disinfect around the farm with quicklime; Isolate the disease-free sheep in time; Sheep with potential infection should use Henan Tianxingjian sheep for emergency prevention; Treatment of sheep epidemic; Before and during the onset of the disease, the sheep from Tianxingjian, Henan Province were used for first aid, each bottle weighed 200 kg, and the weight of Lvjian Pioneer was used once a day 1 time for 2 consecutive days. In the middle and late stage of onset, Henan Tianxingjian sheep was given 200 kg weight per bottle and Lvjian Xianfeng sheep was given 200 kg weight first aid once a day 1 time for 3 consecutive days. Pregnant ewes were injected twice a day according to the treatment amount.