Incident Details

Japan has reported over 100 confirmed measles cases in 2026, with the highest case counts in Tokyo, Aichi, Kanagawa, and Niigata prefectures. Health officials confirm some infections occurred without recent international travel. Cases are increasing faster than in previous years, prompting public health warnings. Measles is a highly contagious airborne virus that can cause severe complications, including pneumonia and encephalitis.

Traveler Safety

Travelers are advised to check if the measles vaccine is right for them. They should also monitor local health updates and seek medical care if symptoms develop.