inclusion criteria: * intervention group: patients with positive pcr for covid-19 of both sexes supplemented with vitamin d * control group: patients with positive pcr for covid-19 of both sexes * both groups: mexican individuals, after signing the informed consent letter and over 18 years of age.

inclusion criteria: * intervention group: patients with positive pcr for covid-19 of both sexes supplemented with vitamin d * control group: patients with positive pcr for covid-19 of both sexes * both groups: mexican individuals, after signing the informed consent letter and over 18 years of age.

inclusion criteria: - intervention group: patients with positive pcr for covid-19 of both sexes supplemented with vitamin d - control group: patients with positive pcr for covid-19 of both sexes - both groups: mexican individuals, after signing the informed consent letter and over 18 years of age.

inclusion criteria: - intervention group: patients with positive pcr for covid-19 of both sexes supplemented with vitamin d - control group: patients with positive pcr for covid-19 of both sexes - both groups: mexican individuals, after signing the informed consent letter and over 18 years of age.