As the United States contends with its worst measles outbreak in decades, Romania — an Eastern European country that has experienced large, sustained surges — provides a cautionary example. Last year Romania reported 30,692 measles cases and 23 deaths; five of those deaths were children under age 1. For a relatively affluent EU member, those figures alarmed public-health experts. Outbreaks continued into 2025, though initial case counts were below the prior year’s peaks, reflecting measles’ tendency to move in waves.
The core driver is simple: measles spreads where vaccination coverage falls. Romania once exceeded the roughly 95% two-dose coverage needed for herd immunity, but that safety margin has eroded. By 2023 only about 62% of Romanians were fully vaccinated against measles — the lowest rate in the European Union. When coverage drops like this, resurgence is predictable.
Several overlapping forces produced Romania’s decline in vaccination rates. Under the Communist era, childhood immunizations were mandatory and delivered in schools; after the measles vaccine arrived in 1979, cases fell by about 90%. Following the 1989 transition to democracy, mandatory programs ended and some people treated vaccine refusal as an expression of newly won freedoms. Widespread distrust of state institutions created fertile ground for anti-vaccine movements.
Public confidence was further weakened by a controversial 2008 HPV vaccination campaign: negative media coverage and skepticism about that program spilled over into doubts about other vaccines. Coverage then slipped steadily and fell sharply again during the COVID-19 pandemic, when routine immunization services were disrupted.
Systemic health‑system weaknesses compounded those trends. Chronic underfunding, a shrinking primary-care workforce, and the absence of a mandatory immunization policy made it harder to keep coverage high or mount rapid outbreak responses. These gaps disproportionately affect marginalized groups: many Roma communities, for example, lack local family doctors and face access and outreach shortfalls rather than simple ideological refusal. At the same time, influential clergy and some far‑right politicians amplified anti‑vaccine messages, increasing hesitancy.
The human costs have been real. Measles is extremely contagious and can cause pneumonia, severe eye and ear infections, diarrhea, hearing loss, and the rare but fatal complication subacute sclerosing panencephalitis years later. Some Romanian regions, such as Suceava, saw case rates reminiscent of the pre‑vaccine era. Parents of infants too young for the two‑dose schedule faced distress and guilt when their children were exposed or fell ill.
Romanian clinicians and public-health teams have turned to evidence‑based approaches to rebuild trust and increase uptake. Many physicians use motivational interviewing: listening without judgment, acknowledging concerns, providing tailored information, and supporting parents to reach their own decisions. Community‑focused outreach, respectful communication, and investments in primary care and access have helped some hesitant families accept vaccination.
Romania’s experience carries lessons for other countries. Even well‑resourced nations can lose ground: Canada recently lost measles elimination status amid sustained transmission, and the U.S. recorded more than 1,700 cases in 2025. Rising hesitancy and gaps in routine immunization can reverse decades of progress.
Key takeaways:
– Herd immunity against measles requires roughly 95% two‑dose coverage; falling below that invites outbreaks.
– Distrust in institutions, political shifts, and high‑profile controversies can undermine confidence across multiple vaccines.
– Health‑system weaknesses — underfunding, workforce shortages, and access gaps — make it difficult to sustain high coverage and respond to outbreaks.
– Community‑tailored outreach and evidence‑based communication techniques, like motivational interviewing, help address hesitancy.
– Marginalized populations often experience access barriers rather than ideological refusal; improving access is essential.
The universal lesson is straightforward: maintaining high routine vaccination coverage and investing in primary care, outreach, and trusted communication are essential to prevent measles’ return. Where coverage falls, measles will come back.