Dr. Shi on Town Square with Ernie Manouse August 20, 2021 Houston Public Media, Aug. 18, 2021 UTMB’s Dr. Pei-Yong Shi joined the daily Houston radio show, Town Square with Ernie Manouse, to discuss COVID variants and the need for vaccine boosters. Dr. Shi’s segment begins at about the 34 minute mark. « Back | The Newsroom »