Vardan Karamyan, TTUHSC (IMAGE) Texas Tech University Health Sciences Center Caption In a focused review of previously published research on a potential link between bradykinin, a well-known peptide, and severe cases of COVID-19, TTUHSC's Vardan Karamyan, Ph.D., suggests two other vasoactive peptides also could be involved. Credit TTUHSC 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.