By Adriana Thomassa Concepcion, Chile, Feb 7 (EFE).- Spanish and Mexican firefighters sent to the aid of Chilean counterparts battling wildfires blamed for 26 deaths deployed Tuesday in the central region of Biobio, 500 km (310 mi) south of Santiago. Members of Spain’s Military Unit for Emergencies (UME) were directed to Yumbel, some 67 km …