Specifies the current status of this reaction entry:
invalid - The status of the reaction entry is unknown.
overThreshold - The status of the reaction entry is overThreshold
when the monitored result exceeds the threshold
value for the hh3cNqaReactThresholdType.
belowThreshold - The status of the reaction entry is belowThreshold
when the monitored result is under the threshold
value for the hh3cNqaReactThresholdType.