Vaccine Reactions in Pets
After receiving a vaccine, it is normal for pets to experience certain side effects which usually start within hours after the vaccination. It’s important to note that if the below side effects last for more than a day or two, or if your pet is in visible discomfort, then you need to contact your veterinarian immediately.
These side effects include:
• Mild fever
• Decreased appetite and activity
• Discomfort and local swelling at the vaccination site
• For intranasal vaccines, pets may experience sneezing, mild coughing, runny nose or other respiratory signs, which may occur 2–5 days after the vaccine
More severe but less common side effects (including allergic reactions) can also occur as soon as minutes or hours after a vaccination. These reactions are medical emergencies and can be life-threatening. If you notice any of these signs, seek veterinary care immediately:
• Persistent diarrhea or vomiting
• Itchy, bumpy skin or hives
• Swelling around the face, neck, eyes and muzzle
• Difficulty breathing or severe coughing
You may also notice a small, firm swelling under the skin where the vaccine was administered. This should begin to disappear within a couple weeks—if it persists more than three weeks, or if it gets bigger, please contact your veterinarian.
If your pet is experiencing any of the above symptoms or you have further questions about vaccine side affects, please contact us at 907-479-0001.