DTaP Immunization (Vaccine)
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Risks
DTaP may cause mild side effects, such as fever, crankiness, soreness at the injection site, vomiting, and decreased appetite. They are self-limited and temporary, lasting only a few days.
Moderate to serious reactions are uncommon and include non-stop crying for greater than 3 hours (1 in 1000 children); fever over 105 degrees (1 in 16,000 children); seizures (1 in 14,000 children).
Severe reactions are extremely rare and include severe allergic reaction (breathing difficulties, shock -- occurring in less than 1 child per million) and long-term seizures/brain damage (so rare that the association with vaccine is questionable).
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