P.H.: The Yale Journal of Public Health is published by Yale College students. Yale University and the Yale school of Epidemiology and Public Health are not responsible for its contents. P.H. is printed by Turley Publications. All images courtesy of Getty Images unless otherwise noted. The design and contents of this magazine are copyright of P.H.: The Yale Journal of Public Heath and may not be reprinted without express written permission. The opinions expressed by contributors to P.H. do not necessarily reflect those of P.H.'s staff or advertisers.
CORRECTION: In “Germs at Work” by Aaron Mitchell, Gregor Reid was mistakenly referred to as a Canadian physician. He is Scottish and is a researcher at the University of Western Ontario. Walter Dobrogosz is Professor Emeritus at North Carolina State University.