Efficacy parameters to compare both groups (vitamin D and No vitamin D).~Time to reach undetectable levels of SARS COV2 Infection.~Time of normalization of symptoms and clinical parameters.~Time of normalization of radiological images.~Time of normalization of biochemical markers.~Time of normalization of molecular inflammatory markers.~Transfer to the Intensive care Unit.~Mortality rate.
Patients diagnosed of COVID-19 disease are randomized to receive a single dose of 100.000 IU of Cholecalciferol (Vitamin D arm) or no vitamin D (on top of the current medication used to treat COVID 19).~Clinical, radiological and biochemical outcomes of COVID 19 disease as well as mortality are evaluated.