The following situations occur during swine fever immunization, indicating that the herd has been infected with swine fever and must be vaccinated promptly with a large dose of vaccine! Fever vaccine is administered and the disease develops! Deaths occur when swine fever vaccine is injected! Allergic reaction to swine fever vaccine! In the case of emergency immunization against swine fever, individual pigs with severe infection may die Panax quinquefolium + Astragalus + Epimedium + immune polysaccharide extract + antibiotic office feeding for 5 days, severe pigs injected with Astragalus polysaccharide + red arch streptozotocin for 5 days, immunized against swine fever on the third day of the 10 copies of this method may result in the deaths of the pigs, the price is more heavy!