Manila, Feb. 13 -- Health personnel in Sarangani province discharged on Thursday the four Chinese tourists who were placed under quarantine last week for the coronavirus disease 2019 (Covid-19). Dr. Arvin Alejandro, head of the Sarangani health office, said the foreigners were released around 5:50 a.m. from the isolation facility of the Regional Drug Abuse Treatment and Rehabilitation Center in Barangay Kawas, Alabel town after completing their 14-day mandatory quarantine. Alejandro said the four tourists, one of them a minor, did not show any signs and symptoms and were cleared of Covid-19 infection. "They were issued certification noting that they have properly complied and completed the quarantine protocol set by the Department of Health...