Regeneration in the Lungs after Flu (image) University of Pennsylvania Share Print E-Mail Caption Researchers successfully transplanted a special type of lung cell called AT2 cells (labeled in green) from healthy mice into mice that had experienced a severe flu infection. The AT2 cells that engrafted (in red) appear to have helped the animals recover more robustly. Credit Aaron Weiner/University of Pennsylvania School of Veterinary Medicine Usage Restrictions In context of reporting Share Print E-Mail 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.