0 0.5 1 1.5+ All studies 50% 20 3,226 Improvement, Studies, Patients Relative Risk Mortality 72% 2 872 Hospitalization 76% 3 885 Recovery 25% 3 286 Cases 45% 1 1,354 Viral clearance 65% 17 1,517 RCTs 53% 17 2,865 RCT mortality 88% 1 606 Peer-reviewed 48% 17 3,132 Prophylaxis 45% 1 1,354 Early 64% 14 1,536 Late 42% 5 336 Povidone-Iodine for COVID-19 c19early.org October 2023 after exclusions Favorspovidone-iodine Favorscontrol