Alma Mater, a beloved bronze mother figure on the campus of the University of Illinois, Champaign-Urbana, wears a mask to encourage students to do the same as they return for the fall semester. Students are also expected to take a COVID-19 test twice a week.

UNIVERSITY OF ILLINOIS/FRED ZWICKY

Bob Roehr is a biomedical journalist based in Washington, DC. Over the last twenty-five years he has written extensively for The BMJ, Scientific American, PNAS, Proto, and myriad other publications. He is primarily interested in HIV, infectious disease, immunology, and how growing knowledge of the microbiome is changing our understanding of health and disease. He is working on a book about the ways the body can at least partially control HIV and how that has influenced (or not) the search for a treatment and cure.