previous doses of the vaccine(s) captured in “Block 13” when those previousdoses are part of the immunization series and those doses are relevant to thereported event(s). For example, events describing a lack of effect and eventsdescribing a cumulative toxicity (such as, events of neurologic sequela,developmental delay, aluminum toxicity, etc.) are events where the previous dosesadministered in the series are relevant/suspect to the reported event(s).