[Problems of influenza immunization and it's future].

Area of Science:

• Epidemiology of infectious diseases
• Vaccinology and immunology

Context:

• Influenza vaccination practices in Japan have evolved, shifting from mandatory for schoolchildren to optional.
• Concerns regarding vaccine efficacy led to policy changes.
• The aging population in Japanese care homes presents new challenges for influenza prevention.

Purpose:

• To evaluate the ongoing need and efficacy of annual influenza vaccination.
• To address the protection of elderly individuals in care facilities against severe influenza.
• To inform public health recommendations for influenza immunization strategies.

Summary:

• Historically, influenza vaccines were administered to schoolchildren in Japan to curb community transmission.
• Despite debates on efficacy, annual influenza vaccination is recommended for high-risk groups.
• Current data suggests that continued annual influenza vaccination is beneficial for protecting elderly individuals in care homes from severe illness and complications.

Impact:

• Provides evidence supporting the continued use of influenza vaccines, particularly for vulnerable populations.
• Informs policy decisions regarding influenza immunization programs in Japan.
• Contributes to strategies for mitigating influenza-related morbidity and mortality in elderly care settings.