Before revision:  Second, in the moderate constraints where the width ranges between 2 to 8, the constraints may temporarily seem to work for the reduction of infections in the early stage but it is just the delay of peaks i. e., the reduction may not mean the suppression of an expansion .
After revision:  Second, in the moderate constraints where the width ranges between 2 to 8, its effect on the suppression of infections may be weak as far as we allow group meetings of size W of 8 or larger. Third, such a moderate constraint may temporarily seem to work for the reduction of infections in the early stage but it is just the delay of peaks i. e., the reduction may not mean the suppression of an expansion .