The US government’s stance on vaccines, particularly regarding measles, has become more pronounced, suggesting that measles may not be a top priority. This shift could have serious consequences globally, especially since several countries are nearing the loss of their measles elimination status.
Recently, the World Health Organization reported that six European nations—namely the UK, Spain, Austria, Armenia, Azerbaijan, and Uzbekistan—have officially lost their measles elimination status. This means the virus has been present in these countries for over 12 months. Health experts recommend that at least 95% of children should be vaccinated to keep measles under control, yet vaccination rates continue to decline across Europe.
In the UK, the situation is particularly alarming, with only 84% of five-year-olds having received both doses of the measles, mumps, and rubella (MMR) vaccine as of 2024. Jennifer Nuzzo, who leads the Pandemic Center at Brown University, labels the UK as a focal point for vaccine hesitancy. This reluctance to vaccinate stems, in part, from the now-retracted 1998 study by Andrew Wakefield, which erroneously linked the MMR vaccine to autism, a claim he made while practicing in the UK. It is notable that this is the second instance where the UK has lost its measles elimination status within a decade.
Even after 15 years since Wakefield’s retraction, the correlation between vaccines and autism has found renewed support worldwide, fueled by figures like Robert F. Kennedy Jr., who currently serves as the US health secretary.
Nuzzo mentions, “The rhetoric in the United States spills over to other countries.” When vaccine doubts bubble up in the US, it often leads others to think that if it’s not good enough for Americans, it might not be safe for them either.
Kennedy has been associated with Children’s Health Defense, an anti-vaccine organization that continues to circulate Wakefield’s discredited claims. Groups like this often present themselves as activists, though Nuzzo notes a profit motive is also present in their operations. A report indicated that the “Anti-Vaxx industry” generates at least $36 million annually. Before taking on his health secretary role in 2024, Kennedy earned millions from Children’s Health Defense and law firms targeting vaccine manufacturers.
Under Kennedy’s leadership, the US risks losing its measles elimination status as well. Since measles frequently spreads internationally, concerns arise with Canada’s and Mexico’s rising outbreak incidents. Canada lost its elimination status last November, and Mexico’s status is similarly at risk.
A significant action signaling the US’s reduced emphasis on measles was the withdrawal of funding from the Global Measles and Rubella Laboratory Network (GMRLN), a move coordinated by the World Health Organization.
Dr. Alonzo Plough, a veteran in public health roles and the current chief science officer at the Robert Wood Johnson Foundation, explains that breakthrough measles cases usually originate from two main factors: international travel and unvaccinated children. In the past, GMRLN has played a crucial role in identifying measles outbreaks globally, but funding cutbacks under the Trump administration have left the nearly 800 international labs struggling to operate efficiently. Plough warns that surveillance capabilities could fail just as measles cases are increasing.
“Viruses don’t recognize borders,” he emphasizes, pointing out the importance of international cooperation in managing highly contagious viruses like measles. He mentions that previously there was a solid “network of protection” thanks to close partnerships between the CDC and GMRLN.
The US Department of Health and Human Services did not answer specific inquiries regarding Kennedy’s stance on vaccines or the situation with GMRLN. However, a spokesperson mentioned ongoing discussions with the White House aimed at protecting Americans in global health initiatives.
It remains uncertain whether GMRLN is functioning fully. A WHO spokesperson indicated that without funding, the global network would be significantly affected, putting member states at great risk of failing to detect outbreaks in a timely manner. They did not clarify if any labs had halted operations or reduced their capabilities.
Nuzzo suggests that the US’s involvement with organizations like the Pan American Health Organization implies there may still be some contributions to international surveillance. Yet, by not publicly prioritizing measles, the US might unintentionally hinder other nations’ responses to the spread of the virus.
Nuzzo worries that globally, there’s a growing complacency about measles. People may think they can simply contract it naturally, which is concerning. She warns, “This is a serious disease; you really don’t want to catch it.” For those who survive, the long-term health effects can be severe, as it may weaken the immune system over time.
Ultimately, Nuzzo expresses her concern that the US’s most significant impact might be spreading misinformation about measles vaccines, leaving the global community more susceptible to outbreaks.
