Utilities
The utility values used to QALY calculations were collected from the literature. The utility value for no hospitalization or mild symptoms was 0.75, for hospitalization or moderate symptoms 0,52 and for need of mechanical ventilation 0,24 (24). Given that they are utilities extracted from studies in populations other than the Colombian, a range was used for the sensitivity analysis of one way and probabilistic of more or less 20% the value of the utility.