Povidone-Iodine Demonstrates Rapid In Vitro Virucidal Activity Against SARS-CoV-2, The Virus Causing COVID-19 Disease
Danielle E Anderson, Velraj Sivalingam, Adrian Eng Zheng Kang, Abhishek Ananthanarayanan, Harsha Arumugam, Timothy M Jenkins, Yacine Hadjiat, Maren Eggers
Infectious Diseases and Therapy, doi:10.1007/s40121-020-00316-3
Introduction: As of 22 June 2020, Severe Acute Respiratory Syndrome (SARS)-coronavirus (CoV)-2 has infected more than 8.95 million people worldwide, causing [ 468,000 deaths. The virus is transmitted through respiratory droplets and physical contact from contaminated surfaces to the mucosa. Hand hygiene and oral decontamination among other measures are key to preventing the spread of the virus. We report the in vitro virucidal activity of topical and oral povidone-iodine (PVP-I) products against SARS-CoV-2. Methods: Suspension assays were used to assess the virucidal activity of PVP-I against SARS-CoV-2. Products were tested at a contact time of 30 s for virucidal activity. Viral titres were calculated using the Spearman-Ka ¨rber method and reported as median tissue culture infectious dose (TCID 50 )/mL. Results: All four products [antiseptic solution (PVP-I 10%), skin cleanser (PVP-I 7.5%), gargle and mouth wash (PVP-I 1%) and throat spray (PVP-I 0.45%)] achieved C 99.99% virucidal activity against SARS-CoV-2, corresponding to C 4 log 10 reduction of virus titre, within 30 s of contact.
Conclusion: This study provides evidence of rapid and effective virucidal activity of PVP-I against SARS-CoV-2. PVP-I-based products are widely available for medical and personal use for hand hygiene and oral decontamination, and could be readily integrated into coronavirus disease, COVID-19, infection control measures in hospital and community settings.
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