Before revision:  For the 19 prefectures included in this study that had daily maximum confirmed cases exceeding ten, the confirmed cases increased and decreased exponentially in the spread and decay durations in most of the prefectures.
After revision:  For the 16 prefectures included in this study that had daily maximum confirmed cases exceeding ten, the confirmed cases increased and decreased exponentially in the spread and decay durations in most of the prefectures.