A 93-year-old pioneer in vaccine development is publicly criticizing the direction of public health policy under a second Trump administration, warning that decades of progress are at risk. Stanley Plotkin, often called the “godfather of vaccines,” expressed his concerns as vaccination rates decline and political skepticism towards immunization grows.
Plotkin, an emeritus professor of pediatrics at the University of Pennsylvania and an adjunct professor at the Johns Hopkins Bloomberg School of Public Health, led the development of the first vaccine against rubella in 1969. His work dramatically reduced the incidence of congenital rubella syndrome, a condition causing severe birth defects. Yet, he now observes a resurgence of measles, with over 1,267 cases reported in the U.S. This year, including cases in Maryland, a trend he attributes, in part, to growing anti-vaccine sentiment.
In December 2024, Plotkin convened a virtual meeting with over a dozen Philadelphia health experts to strategize about potential challenges to immunization efforts under the second Trump administration, according to reports. The meeting signaled a proactive effort by public health leaders to anticipate and address potential setbacks.
Plotkin has been particularly critical of Health and Human Services Secretary Robert F. Kennedy Jr., accusing him of operating “on a zero scientific basis” and warning that his actions could limit access to vaccines and erode public trust. He did not elaborate on specific actions, but his comments reflect a deep concern about the potential impact of political leadership on public health initiatives.
The concerns extend beyond measles. In January 2025, Plotkin participated in discussions about broader immunization challenges, anticipating difficulties under a second Trump administration. These discussions followed a period of increasing scrutiny of vaccine policies and a rise in vaccine hesitancy.
Plotkin’s warnings come as the field of vaccinology faces a shifting landscape. He reflected on how vaccinology has changed over his lifetime, recalling his own near-fatal experience with preventable diseases as a child, including whooping cough. His personal history underscores the profound impact vaccines have had on public health.
