Patient Inclusion Criteria

1. Informed consent provided electronically via the EDC, demonstrating that the subject understands the procedures required for the study and the purpose of the study 2. Male or female subjects 18 years of age and up 3. Subjects must agree to practice at least two highly effective methods of birth control for the duration of the study. This includes condoms with spermicide, oral birth control pills, contraceptive implants, intra-uterine devices, or diaphragms. At least one of these must be a barrier method. Subjects not of reproductive potential will be exempt (e.g. post-menopausal, surgically sterilized) 4. Diagnosis of COVID-19 by RT-PCR

Patient Exclusion Criteria

1. Refusal to provide informed consent 2. Diarrhea prior to infection 3. Any comorbidities which, in the opinion of the investigator, constitute health risk for the subject 4. Any contraindications for treatment with hydroxychloroquine 1. Hypoglycemia 2. Known G6PD deficiency 3. Porphyria 4. Anemia 5. Neutropenia 6. Alcoholism 7. Myasthenia gravis 8. Skeletal muscle disorders 9. Maculopathy 10. Changes in visual field 11. Liver disease 12. Psoriasis 5. Anemia from pyruvate kinase and G6PD deficiencies 6. Abnormal EKG with QT prolongation acquired or from birth 7. Allergies to 4-Aminoquinolines 8. History of jaundice or high fevers prior to developing COVID-19 9. Treatment with any of the medications listed in Appendix II 10. Treatment with any other drug not listed that affects the QT interval 11. Treatment with any anti-epileptic drug, whether prescribed for seizures or otherwise. 12. Pregnant or breastfeeding women