Japan is witnessing a sharp increase in cases of measles. Citizens are advised to ensure their immunizations are up-to-date by checking their health records contained in their "Mother and Child Health Handbooks" — a document provided to all pregnant women in Japan for recording both maternal and child health information. Health authorities are underscoring the importance of regular vaccinations to prevent the spread of the disease.

In Japan, each pregnant woman is provided with a Mother and Child Health Handbook where health records of both mother and child are recorded. This comes under Japan’s public health and social welfare system, and people pay keen attention to maintaining these records. With the sudden outbreak, the importance of regular vaccinations and maintaining accurate health records have increased.

In comparison to Japan, the US and EU also have immunization records but they are less centralized and standardized. Vaccination is also emphasized, and outbreaks like this would typically result in a public health alert reiterating the importance of vaccination, although the specific response and involvement of healthcare institutions might vary.