Intervention
MAY, GROUP B
The intervention started on May and finished on August 2020. Intervention was made by medical residents. Participants were randomized into two groups (Group A and Group B). The intervention group (Group A) received VDs (200,000 IU/1 ml of cholecalciferol (1 ml) oral form), while the control group (Group B) received a placebo treatment (physiological saline (1 ml) oral form). After agreement, medical residents administered the treatment according to group allocation of patients. The containers of the drinkable ampoules containing the vitamin D or the placebo treatment were similar. The treatment was distributed in the same day of the RT-PCR results.