Nano-preterm infant (IMAGE) University of Alabama at Birmingham Caption Vivek Shukla, right, and Brian Sims, left, help hold Guinness World Records Certificate for Most Premature Baby to Survive, awarded in honor of mother Michelle Butler and child Curtis Means, born at 21 weeks gestation (center). Adults are masked for COVID precautions in 2021. Credit UAB: Andrea Mabry Usage Restrictions None 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.