Measles is back in Europe. Luxembourg wants you to check your two doses

As Luxembourg’s residents pack for the summer holidays, the country’s health authorities have issued a pointed reminder: before you travel, check whether you are protected against measles.

On 18 June, the Ministry of Health and Social Security urged the public to verify their vaccination status amid a resurgence of the disease across Europe and in other parts of the world, the United States included. The vaccine, the ministry stressed, remains the single best protection — and in Luxembourg it is recommended for the whole population, usually given as the combined measles, mumps and rubella (MMR) shot. “Full protection requires two doses,” it said, urging anyone unsure of their status to consult a doctor and catch up if needed.

A disease that travels well

Measles is among the most contagious diseases known to medicine; a single infected person can pass it to most unvaccinated people they meet. “Measles is a highly contagious disease that spreads through the air, particularly in enclosed and crowded places such as public transport,” the ministry noted — a warning with obvious resonance in a country crossed each day by more than 200,000 cross-border commuters and dense with trams, trains and buses.

Its reputation as a harmless rite of childhood is misleading. Measles can cause pneumonia and encephalitis, kills in rare cases, and suppresses the immune system for months afterwards, leaving survivors exposed to other infections. There is no specific cure — only the vaccine that prevents it.

Europe’s uneven recovery

The continental backdrop is sobering. The World Health Organization’s European region recorded 127,350 measles cases in 2024 — double the previous year and the highest tally since 1997, with 38 deaths. Children under five accounted for more than 40% of those infections.

2025 brought relief but not reassurance: about 34,000 cases, a fall of nearly 75%. Within the EU and the European Economic Area, the European Centre for Disease Prevention and Control logged 3,779 cases in the year to April 2026, led by Bulgaria and Italy.

“Measles cases fell by nearly 75% last year, but the risk of outbreaks remains. Over 200,000 people in our region fell ill with measles in the past 3 years.” — Dr Hans Henri P. Kluge, WHO Regional Director for Europe

UNICEF’s regional director for Europe and Central Asia, Regina De Dominicis, struck the same note: “While cases have reduced, the conditions that led to the resurgence of this deadly disease in recent years remain and must be addressed.”

The immunity gap

Those conditions are, above all, gaps in coverage. Immunisation rates slipped during the COVID-19 pandemic and in many countries have not recovered; of cases with a known vaccination status, the overwhelming majority were unvaccinated. Across the Atlantic, the United States recorded its largest measles outbreaks in more than three decades in 2025, fuelled by falling childhood uptake and vaccine hesitancy.

Luxembourg, small and open, cannot insulate itself from those trends. Its defence is herd immunity — the dense web of protection that denies a virus any foothold — and that web frays wherever pockets of unvaccinated people accumulate. Summer sharpens the danger: families heading to festivals, airports and crowded southern resorts move through exactly the settings where measles thrives, and may carry it home to relatives too young to be vaccinated.

What the ministry is asking

• Check your vaccination record, and your child’s, before travelling this summer.
• Two MMR doses are needed for full protection.
• People born after 1970 who never received two doses are particularly encouraged to catch up.
• If in doubt, a general practitioner or paediatrician can check records and vaccinate.

It is, in the end, an unglamorous public-health message — the kind that works precisely because it is repeated. Measles was once on the verge of elimination in Europe. Its return is a reminder that the achievement was never permanent, and that the price of keeping it is a booklet checked and a sleeve rolled up.