1. **Mild Reactions**: These may include:
- **Soreness at the injection site**: Your dog may show signs of discomfort or tenderness where the vaccine was administered.
- **Low-grade fever**: A slight increase in temperature is common and usually resolves quickly.
- **Lethargy**: Your dog may seem more tired or less active than usual for a day or two.
- **Reduced appetite**: Some dogs may not be as interested in food following vaccination.
2. **Moderate Reactions**: These can be more concerning and may include:
- **Vomiting or diarrhea**: Gastrointestinal upset can occur in some dogs after vaccination.
- **Swelling**: Look for swelling at the injection site or in other areas, such as the face or limbs.
- **Hives**: Raised bumps on the skin can indicate an allergic reaction.
- **Coughing or difficulty breathing**: These symptoms may suggest a more serious reaction.
3. **Severe Reactions (Anaphylaxis)**: This is a rare but life-threatening reaction that requires immediate veterinary attention. Signs include:
- **Severe swelling of the face, throat, or tongue**: This can obstruct breathing.
- **Rapid or weak pulse**: A significant change in heart rate can indicate shock.
- **Collapse or unresponsiveness**: Your dog may suddenly become very weak or lose consciousness.
- **Seizures**: Neurological symptoms can occur in severe cases.
If you notice any of these signs after your dog has been vaccinated, especially severe reactions, contact your veterinarian immediately. It's always good practice to monitor your dog closely for at least 24 hours after vaccination to catch any potential reactions early. Regular communication with your vet about your dog's vaccination history and any previous reactions is also important for their safety and health.
Remember, the benefits of vaccination in preventing serious diseases typically outweigh the risks of reactions. Always discuss any concerns you have with your veterinarian before your dog's vaccinations.
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