1) Imported Dutch bivalent vaccine (mainly to prevent canine distemper and parvovirus) was injected around the 45th day.
2) About 14- 15 days after the combined vaccine injection, the imported Dutch combined vaccine (mainly to prevent canine distemper, parvovirus, coronavirus, infectious hepatitis and parainfluenza) was injected.
3) Same as 2). At the same time, the imported Dutch rabies vaccine was injected.
4) Inject imported Dutch pentavaccine and rabies vaccine once a year.