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.