SunStar 267 construction workers brought to Oro's isolation units CAGAYAN DE ORO. City Mayor Oscar Moreno said while the Manila-based construction company has safety protocols for their bunkers or quarters intended for its workers, said protocols have failed as the number of Covid-positive workers has reached 50, although not happening at the same time. (Screenshot from City Information Office video) + February 06, 2021 A TOTAL of 267 workers of a Manila-based construction company were brought to the city isolation units (CIUs) of Cagayan de Oro on Friday, February 6, 2021, after 22 of its workers tested positive for the novel coronavirus. The 267 workers, according to Dr. Joselito Retuya, are those who are suspects or possible close contacts of the Covid-positive employees.