Measles is causing alarm among health experts following the death of an unvaccinated child in a US outbreak, which has infected over 150 people. The virus is highly contagious and continues to spread in Texas and nine other states. In Europe, 16,510 cases were reported in 2024, with fatalities in Romania and Ireland. Measles primarily affects children and can lead to severe complications, including pneumonia and encephalitis. Vaccination is crucial for prevention, yet many areas have low immunization rates.