By RICARDO CASTILLO Curfew in Chihuahua An alarming surge of covid-19 contagion in the Mexican border state of Chihuahua forced authorities to impose a mobility stoppage on all activities. The curfew applies Monday through Thursday from 7 p.m. to 6 a.m., and will be enforced for the weekend starting on Friday, Nov. 6, at 7 p.m. through Monday, Nov. 9,