Which patients are at highest risk for breakthrough disease?

Updated: Nov 30, 2018
  • Author: Kirsten A Bechtel, MD; Chief Editor: Russell W Steele, MD  more...
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Some studies have found that breakthrough disease is more common if the vaccine was given prior to age 14 months, within 28 days after the measles-mumps-rubella (MMR) vaccine, and if the child was on oral steroid therapy. [34] Duration between vaccination and exposure has also been found to be significant. [35] Other studies have not found such associations. [33]

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