Reasons why dog vaccinations will fail:
1. Improper storage of vaccines. Vaccines should be stored in the fresh-keeping layer of the refrigerator. They should not be kept at room temperature or frozen. If stored for too long, the vaccine will become invalid.
2. Improper vaccination operation. Dogs should be vaccinated subcutaneously, not on the buttock muscles. The buttocks have a lot of fat tissue and less immune active cells. After injection, the antibody titer produced is low and the antibody declines quickly.
3. The timing of vaccination is wrong. It is not recommended to vaccinate dogs too early. The dog has maternal antibodies before weaning. At this time, the vaccination will not work. If the vaccine is injected too frequently or the interval is too long, the immune effect will be invalid. .
4. Dog physical problems. Dogs may carry certain genetic diseases, or have problems with their own immune system, or are overweight or too old to produce antibodies.
5. Dog health problems. If the dog has already suffered from an infectious disease when vaccinated, or other diseases will affect the immune effect. In addition, if the dog is taking some medicines, it will also develop resistance to the vaccine.
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