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Possible Vaccination Reaction

Possible Vaccination Reactions

Although vaccinations are safe and effective, some pets may experience a reaction. Some of these reactions may be:

  • Mild lethargy
  • Muscular soreness
  • Decreased appetite
  • Mild fever
  • Mild vomiting or diarrhea

The above do not usually last more than 24 hours. If these symptoms persist longer than 24 hours, please call.

Rarely these more serious conditions occur:

  • Swelling of the face or ears
  • Hives or significant itching
  • Difficulty breathing
  • Significant lethargy
  • Significant vomiting or diarrhea
  • Fluid build up or infection at the injection site

Occasionally, pets that have received injectable vaccinations develop a localized reaction indicated by a small hard lump under the skin where the vaccine was administered. These lumps may take one to three weeks to appear and two to six weeks to resolve. They usually do not require treatment.

Please feel free to contact us with any questions or concerns.

If your pet shows any of the above symptoms, take them to the nearest Emergency Clinic if a problem occurs after our regular business hours.

United Veterinary Specialty & Emergency 408-578-5622 located at 5440 Thornwood Dr., San Jose (across from Oakridge Mall) or 408-371-6252 located at 911 Dell Ave., Campbell or 408-494-1461 located at 601 Showers Dr., Mountain View.

Silicon Valley Veterinary Specialists (Emergency services 24 hours/day 7 days/week) 408-649-7070 located at 7160 Santa Teresa Blvd.