le regain

le regain de vitalité des Ex-seleka constitue une source d'inquiétude

the renewed vitality of Ex-Seleka is a source of concern

Ces preoccupations ont ete accrues par le regain de faiblesse du taux de « change de l' euro a partir de la mi-juin.

These concerns were compounded by the renewed weakness of the exchange rate of the euro from mid-June onwards.