Breadcrumb Home News Patients With Vulnerable Immune Systems Worry Vaccine Exemptions May Put Them in Peril Patients With Vulnerable Immune Systems Worry Vaccine Exemptions May Put Them in Peril March 22, 2022 Clinical Ethicist Joel Wu, JD, MPH, MA, HEC-C weighs in on the dilemma. Previous News Christopher Wong Michaelson, PhD, Has Been Named the Koch Endowed Chair for Business Ethics at the University of St. Thomas Daniel Groll, PhD, Has Been Selected As One of the Mellon Periclean Faculty Leaders in the Humanities Rachel R. Hardeman, PhD, MPH, Joins the Hastings Center Board of Directors