Symptoms: After 5-10 minutes after vaccination, the piglet vomits, foams, chills, convulsions, difficulty walking, wheezing, rapid breathing, frequent defecation, general muscle spasms, and body temperature of 40-41.5°C.
First-aid method (10-15kg weight piglets as an example): 2-3 ml of epinephrine injected intramuscularly into each piglet; severe cases should be injected intramuscularly once every 6-8 hours after the first injection; when the body temperature is particularly high, Analgin 4-6 ml, dexamethasone 4-6 ml intramuscular injection; normal body temperature, intramuscular injection of vitamin C1.5-2 g, dexamethasone 4-6 mg.
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