Lung histology - idroxonil (IMAGE) Hudson Institute of Medical Research Caption Comparison of lung tissue in control (top), untreated Covid (middle), and Covid treated with idroxonil. Credit Michael Gantier, Hudson Institute of Medical Research Usage Restrictions For use only with this story License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.