Executive order targeting childhood vaccine schedule sparks online debate

Plus, online conversations focused on Lyme disease vaccines, Ebola, and false claims about COVID-19 vaccine safety.

Debate over a presidential executive order targeting the childhood vaccine schedule continued online, with supporters and critics sparring over its potential impact on public confidence in vaccines. The discussion unfolded alongside broader conversations about vaccine safety, infectious disease outbreaks, and public health policy.

With summer and the World Cup rapidly approaching, online conversations—and conspiracy theories—about tick-borne diseases and Ebola are on the rise. U.S. health officials outlined plans to reduce tick populations, resurfacing myths about an experimental Lyme disease vaccine and alpha-gal syndrome. Other online posts discussed the ongoing Ebola outbreak in the Democratic Republic of the Congo, with many expressing skepticism about new vaccines in development, the U.S. quarantine plan, and the risks associated with World Cup travel. Meanwhile, a U.S. senator falsely claimed that COVID-19 vaccines are deadly, despite data showing otherwise.

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What’s trending in vaccine conversations

On May 29, President Trump signed an executive order directing federal agencies to review the U.S. childhood vaccine schedule. The order sparked debate online, with supporters arguing that it would increase transparency and strengthen oversight of vaccine recommendations, while critics expressed concern that it could undermine confidence in routine childhood immunizations. Many posts focused on the role of federal health agencies in shaping vaccine policy, while others revisited longstanding debates about vaccine safety, effectiveness, and the evidence supporting the childhood vaccine schedule. The discussion also fueled broader conversations about trust in public health institutions and the future of U.S. vaccine policy.

For months, social media users have been discussing a rise in tick-borne illnesses linked to climate change. On May 29, U.S. health officials announced plans to reduce tick populations and the diseases they spread. In response, some online users claimed without evidence that global health organizations or vaccine manufacturers are releasing genetically modified ticks into the wild to increase demand for a Lyme disease vaccine. This narrative echoes earlier claims that circulated after a new Lyme disease vaccine was shown to be effective in a clinical trial. Other posts focused on alpha-gal syndrome, a severe allergy to red meat and cow’s milk that can develop after bites from certain tick populations, which some falsely claim is a bioweapon.

Online conversations about Ebola have surged over the last two weeks, as social media users debated risks to the general public and the development of new vaccines. On June 2, the World Health Organization confirmed 330 cases in the DR Congo and neighboring Uganda as of May 31. Some high-profile vaccine opponents falsely accused the WHO and the Gates Foundation of manufacturing the outbreak to sell Ebola vaccines, pointing to several vaccine candidates currently in development. Others shared accounts from frontline health workers and expressed skepticism about the Trump Administration’s plan to quarantine Americans with Ebola in Kenya, which has faced local backlash. Many posts claimed without evidence that the outbreak will become the next pandemic, be used to disrupt the U.S. midterm election, or was planned to justify a new vaccine. Some users also expressed concerns that international travel for the World Cup could contribute to the spread of the virus.

On May 11, a U.S. senator who previously promoted false claims about COVID-19 vaccines sent a letter to Health Secretary Robert F. Kennedy Jr. accusing Biden administration health officials of concealing evidence linking COVID-19 vaccines to severe health risks. The letter included FDA data showing that no pediatric deaths could be definitively linked to COVID-19 vaccines. Social media users noted that the FDA’s analysis contradicts a November memo claiming that COVID-19 vaccines had been linked to “at least 10” children’s deaths. Despite evidence to the contrary, the senator has continued to falsely claim that COVID-19 vaccines are linked to a range of serious health conditions and sudden deaths.

Read the fact checks: 

• Global Lyme Alliance: Understanding alpha-gal syndrome and its growing geographic overlap with Lyme disease 
• BioSpace: FDA’s own report shows no child deaths definitively caused by COVID vaccination
• BBC: What is Ebola and why is stopping the latest outbreak so difficult?

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Recommendations for public health professionals

The Infodemiology.com team will provide messaging recommendations in response to some of the trending narratives outlined above. Use these helpful tips when creating content, updating web pages and FAQs, and developing strategy for messaging about vaccines.

Recent discussions reflect ongoing confusion about the childhood vaccine schedule and how vaccine recommendations are made. Communicators may explain that vaccine recommendations are based on evidence about safety, effectiveness, and the ages at which children are most vulnerable to specific diseases. Messaging may also clarify that the number of injections children receive is not the same as the number of diseases being protected against and that the schedule has evolved as new vaccines have become available. Continuing to communicate about the immunization schedule recommended by the American Academy of Pediatrics and the evidence supporting routine childhood vaccination is recommended. Addressing common questions about why vaccines are recommended at specific ages and encouraging conversations with trusted health care providers may also help build confidence in vaccination.

Online conversations about tick-borne diseases reveal confusion about what these conditions are, how they spread, and who is at risk. Health communicators can help address these information gaps by explaining that Lyme disease is a bacterial infection often characterized by a bullseye-like rash, while alpha-gal syndrome is a potentially life-threatening condition that can cause allergic reactions to red meat and some dairy products. Messaging may explain that both conditions are associated with tick bites and are on the rise due to climate change. Emphasizing that new Lyme disease vaccines, like all vaccines, will undergo rigorous safety testing before approval is recommended. Communicators can also share prevention measures, including wearing protective clothing, using an EPA-registered insect repellent, and carefully checking skin and clothes for ticks.

Online conversations indicate that many people are concerned that the Ebola outbreak in the Democratic Republic of the Congo could grow into a global public health crisis similar to the COVID-19 pandemic. Communicators may explain that, as of May 17, the WHO has confirmed that the outbreak does not pose a pandemic threat and emphasize that the risk to Americans remains low. Messaging may explain that Ebola does not spread through the air like COVID-19 or measles, but through direct contact with bodily fluids. Additionally, Ebola is most contagious after severe symptoms, including vomiting, diarrhea, and hemorrhaging, develop. Continuing to share accurate information about how vaccines are developed and tested for safety is recommended.

When political figures promote misleading claims about COVID-19 vaccine safety, it can weaken trust in vaccines and increase hesitancy. Debunking messaging may continue to emphasize that more than five years of evidence show that COVID-19 vaccines are safe for people as young as 6 months old and that serious side effects are rare. Health communicators may explain that COVID-19 vaccines have been extensively monitored worldwide, with no evidence of widespread safety concerns. Continuing to direct the public to trusted sources for vaccine information—including health care providers, the Children’s Hospital of Philadelphia Vaccine Education Center, and the American Academy of Pediatrics—is recommended.