Abstract: Vitamin D, Melatonin, Vitamin C, and Viscum Album iew ed Case Cluster of RT-PCR COVID-19 Positive Patients with an Unexpected Benign Clinical Course With Authors: Mark Hancock MD MPH1, Petra Ketterl MD1, Xavier Vinas2, Paul Werthmann MD3,4,5 Institutions: HUMANIZING MEDICINE, 135 Maple Street, Building A, Decatur, GA, US 2 Xavier Viñas Design, Decatur, GA, US 3 Center for Complementary Medicine – University of Freiburg, Faculty of Medicine, University of 4 Institute for Applied Epistemology and Medical Methodology at the University of Witten/Herdecke, Zechenweg 6, D-79111 Freiburg i.Brsg., Germany Department of General and Visceral Surgery, University Hospital Ulm, Ulm, Germany pe 5 er r Freiburg, Breisacherstr. 115B, 79106 Freiburg, Germany ev 1 Corresponding author: Mark Hancock MD MPH, HUMANIZING MEDICINE, 135 Maple Street, Building Pr ep rin tn ot A, Decatur, GA, US, mark@humanizingmedicine.com This preprint research paper has not been peer reviewed. Electronic copy available at: https://ssrn.com/abstract=3779211 Abstract iew ed Background: The SARS-COV-2 global pandemic has been noted to have a differential effect on those exposed depending on risk factors such as age, diabetes, cardiovascular disease and cancer. Case presentation: We report a case series of 12 confirmed positive patients and 12 presumptive positive patients all of whom had either an entirely asymptomatic or relatively mild clinical course. 2 patients had active cancer, 3 patients were cancer survivors, 1 patient without cancer was 74 years old. All patients were treated early in their disease course with vitamin D loading (50,000iu daily for 3 ev days), 60 to 240mg melatonin, and 2000mg oral vitamin C. The 6 high risk patients and one 59 year old patient were treated with at least 2 intravenous doses of vitamin C. The 2 patients with active cancer received 75 grams of vitamin C (one daily, the other every other day). All of the high risk patients had er r a nearly asymptomatic clinical course and were tested after 10 days and all had a RT PCR for COVID-19 that was negative. The 17 remaining patients also had a relatively benign course though 4 patients (2 in their 20s, 2 in their 50s) received this treatment course later in the course of their illness, these were notably the only patients who had more than a mild sore throat or low grade fever. pe Conclusion: We report these unexpectedly positive clinical outcomes of COVID-19 patients including patients with different risk factors, under supplemental vitamin C and D and melatonin. These supplements have a favorable safety profile and are already being suggested as potentially disease tn ot altering therapies in the ongoing COVID-19 pandemic. Pr ep rin Key Words: COVID-19, Cancer, Vitamin D, Melatonin, Vitamin C This preprint research paper has not been peer reviewed. Electronic copy available at: https://ssrn.com/abstract=3779211