Credit: CDC LA JOLLA--In a new paper, scientists from La Jolla Institute for Immunology (LJI) bring together research findings from COVID-19 researchers around the world. The results are striking: human T cells can target more than 1,400 sites on the SARS-CoV-2 virus. "Our lab and many others have shown this very broad and diverse T cell response," says LJI Research Assistant Professor Daniela Weiskopf, Ph.D., co-author of the Cell Host & Microbe review. This kind of research review, called a "meta-analysis," pools the results of multiple studies, and the researchers give close consideration to how the studies were conducted. In the case of COVID-19, a global meta-analysis of T cell response studies is especially helpful because different patient populations can have vastly different immune responses, based on their genetic differences and past disease history.