The multivalent vaccines that I give puppies at 12, 14 and 18 weeks of age contain attenuated (weakened) Canine Coronavirus.
The multivalent vaccines that I give puppies at 12, 14 and 18 weeks of age contain attenuated (weakened) Canine Coronavirus.
同时多价疫苗一般在幼犬12，14，18周的时候进行注射。