Learn How to Recognize the Symptoms of Vaccine Reactions

Like SafeMinds, the National Vaccine Information Center (NVIC) encourages consumers to become fully informed. The NVIC has created If You Vaccinate, Ask Eight!, a brochure which provides a series of questions to ask before vaccinating and also provides a list of some vaccine reaction symptoms:

  • Pronounced swelling, redness, heat or hardness at the site of the injection;
  • Body rash or hives;
  • Shock/collapse;
  • High pitched screaming or persistent crying for hours;
  • Extreme sleepiness or long periods of unresponsiveness;
  • High fever (over 103 F)
  • Twitching or jerking of the body, arm, leg or head;
  • Crossing of eyes;
  • Weakness or paralysis of any part of the body;
  • Loss of eye contact or awareness or social withdrawal;
  • Loss of ability to roll over, sit up or stand up;
  • Vision or hearing loss;
  • Restlessness, hyperactivity or inability to concentrate;
  • Sleep disturbances that change wake/sleep pattern;
  • Head banging or onset of repetitive movements (flapping, rubbing, rocking, spinning);
  • Joint pain;
  • Muscle weakness;
  • Disabling fatigue;
  • Loss of memory;
  • Onset of chronic ear or respiratory infections;
  • Violent or persistent diarrhea or chronic constipation;
  • Breathing problems (asthma);
  • Excessive bleeding (thrombocytopenia) or anemia.
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