RFK Jr-Linked Groups Push to End Vaccine Mandates Amid Measles Outbreak

As South Carolina confronts its largest measles outbreak since the disease was declared eliminated in 2000 – with nearly 1,000 cases reported to date – a coordinated effort to dismantle vaccine requirements is gaining momentum. The campaign, fueled by groups with ties to U.S. Health and Human Services Secretary Robert F. Kennedy Jr., is targeting state-level mandates designed to protect children and maintain community immunity. This push coincides with a national resurgence of measles, with the U.S. Recording over 1,100 cases in 2026 alone, surpassing totals from the past three decades.

The effort isn’t limited to South Carolina. Activists are organizing opposition to vaccine mandates in more than 20 states, including those currently experiencing outbreaks, such as Arizona, Florida, and Washington state. The core argument centers on individual liberty, with proponents asserting a right to participate in activities like school and work without immunization. However, this stance often relies on the dissemination of misleading information about vaccine risks and the severity of vaccine-preventable illnesses.

The Network Behind the Push

Leading this campaign are several organizations with direct links to Kennedy. The Medical Freedom Act Coalition, recently formed, brings together 15 groups advocating for legislation modeled after a 2025 Idaho law that broadly prohibits medical mandates. Key players within the coalition include Leslie Manookian’s Health Freedom Defense Fund and Stand for Health Freedom, which has been actively influencing state vaccine legislation since 2019. Notably, Kennedy’s longtime book publisher, Tony Lyons, leads Maha Action, another group involved in the coalition. Children’s Health Defense, an organization Kennedy previously led, also plays a role.

Manookian, a film-maker, homeopath, and activist, frames the issue as a fundamental human right – the right to bodily autonomy. She and others within the coalition maintain that vaccines are more dangerous than the diseases they prevent, a claim that contradicts established medical consensus. For example, they point to outdated research from 1962, predating the widespread availability of the measles vaccine, to suggest that measles is a relatively mild illness. However, this research also acknowledged measles as “an important health problem” and expressed hope for its eradication through vaccination. The original study, even as noting the common cold was more prevalent, did not diminish the significance of measles as a public health concern.

Measles: A Resurgent Threat

Measles is a highly contagious viral infection that can lead to serious complications, including pneumonia, encephalitis (brain swelling), and even death. The Centers for Disease Control and Prevention (CDC) reports that approximately one in five people who contract measles require hospitalization. As of February 2026, the U.S. Has recorded over 1,100 cases, a level not seen in 35 years. The outbreak in South Carolina is particularly concerning, with a significant proportion of cases occurring among unvaccinated individuals – 692 out of 789 cases as of January 2026.

The current situation underscores the importance of maintaining high vaccination rates to achieve herd immunity – the point at which a sufficient percentage of the population is immune to a disease to prevent its widespread transmission. Experts estimate that approximately 95% vaccination coverage is needed to protect communities from measles. In some schools within the epicenter of the South Carolina outbreak, vaccination rates fall below 80%, creating vulnerable pockets where the virus can easily spread.

The Impact of Declining Vaccination Rates

Dr. Jana Shaw, an infectious disease specialist, warns that weakening or removing vaccine mandates will inevitably lead to lower vaccination rates and a corresponding increase in illness and suffering. Research conducted by Shaw demonstrates a higher risk of pertussis (whooping cough) infection for children living in counties with lower vaccination rates. Even vaccinated children are at increased risk in these communities due to the ease of transmission. She emphasizes that vaccination is not solely a personal choice but a collective responsibility, impacting the health of the entire community.

Yale School of Public Health modeling further illustrates the potential consequences of declining vaccination rates. The study predicts that a sustained 1% annual decline in measles, mumps, and rubella (MMR) vaccination could cost the U.S. $7.8 billion by 2030, in addition to increased hospitalizations and fatalities.

What Comes Next: A Shifting Landscape

The legislative battles over vaccine mandates are ongoing. While some bills have stalled, such as one in Modern Hampshire that failed to garner sufficient support, advocates are actively pursuing alternative legislation in states like Iowa. Stand for Health Freedom has issued action alerts, urging supporters to contact lawmakers in 19 states to oppose vaccine mandates. The coalition is also challenging the narrative surrounding measles, downplaying its severity and questioning the effectiveness of vaccines. Leslie Manookian, for instance, has publicly stated that measles outbreaks are being “hyped” and questioned whether vaccines were solely responsible for the decline in polio rates – a claim refuted by medical experts who attribute the near-eradication of polio to widespread vaccination efforts.

The Department of Health and Human Services (HHS) maintains that vaccination remains the most effective way to prevent measles, but has not directly addressed whether Secretary Kennedy supports the coalition’s efforts to finish school vaccine mandates. The situation highlights a growing tension between individual liberties and public health concerns, and underscores the critical need for evidence-based decision-making in the face of a resurgent infectious disease.

Public health officials will continue to monitor measles cases closely, track vaccination rates, and provide guidance to states and communities. The CDC is actively working with South Carolina health officials to contain the outbreak, providing financial assistance and technical support. However, the long-term success of these efforts will depend on maintaining public trust in vaccines and ensuring equitable access to immunization services.