The purpose of the study is to confirm if BACTEK-R (MV130) provides clinical benefit in subject with mild pneumonia (CURB-65≤2) by COVID-19 admitted to the Hospital.

This is a prospective, open-label, randomized pilot study to evaluate the efficacy and safety of BACTEK-R (MV130) in subject with mild pneumonia due to COVID-19 infection.

Inclusion Criteria:

1. - Subjects who voluntarily sign informed consent forms
2. - Both genders.
3. - Subjects aged between 18 and 70 years.
4. -Subjects capable of complying with the treatment
5. - Subjects admitted to hospital with non-severe pneumonia (CURB-65≤2) by COVID-19
6. - Confirmatory test for COVID-19 infection

Exclusion Criteria:

1. - Subjects who has not signed informed consent forms
2. - Subjects included in another clinical trial.
3. - Subjects under treatment with immunosuppressants.
4. - Subjects in treatment with another type of immunotherapy.
5. - Subjects who are or have been undergoing treatment with metformin.
6. - Subjects who are or have been treated with statins.
7. - Subjects who are or have been under treatment with sertraline.
8. - Pregnant women.
9. - Subjects who cannot offer cooperation and / or have serious psychiatric disorders.
10. -Subjects who are allergic to any of the components of BACTEK-R (MV130).
11. - Subjects with pathologies described in the Charlson index