What should be avoided for 11 months after the onset of Kawasaki disease?

Live immunizations should be avoided for 11 months following the onset of Kawasaki disease because the treatment for this condition typically involves high doses of aspirin and intravenous immunoglobulin (IVIG). The use of these medications can temporarily suppress the immune system, which raises concerns about the safety and efficacy of live vaccines during this period. Live vaccines, such as those for measles, mumps, rubella, and varicella, contain weakened forms of the virus, and administering them while the immune response is compromised could lead to serious complications or insufficient immunity in children.

The recommendation to delay live immunizations for this duration is a precautionary measure aimed at ensuring that the child is at minimal risk for adverse effects while also allowing their immune system to recover fully and effectively respond to future vaccinations. It is essential for healthcare providers to monitor these children closely and guide families on appropriate vaccination schedules once the waiting period has passed.