Lung CT scans Hamster COVID (IMAGE) University of Wisconsin-Madison Caption : Images of the lungs of hamsters before and after infection with SARS-CoV-2, from CT scans at UW Veterinary Care at the School of Veterinary Medicine. In blue are the trachea and bronchi. In red is a region of gas in the cavity just outside the lungs, indicating severe lung damage in the affected animal. The opaque clouding is similar to the "ground glass" appearance in the lungs of some human patients sick with COVID-19. Signs of severe disease in the lungs of hamsters became apparent within eight days of infection and began to improve by 10 days. The effects lingered for longer, as evident on the scan taken 16 days after initial infection. Credit Courtesy: Yoshihiro Kawaoka Usage Restrictions None License Licensed 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.