The sudden suspension of United States funding to the US Agency for International Development (USAID) and Gavi in 2025 has raised serious concerns for global immunisation programmes. Historically, US support has been instrumental in reducing child mortality and expanding vaccine coverage in low- and middle-income countries (LMICs). The abrupt withdrawal, combined with declining aid commitments from other major donors, threatens routine immunisation and maternal and child health services, particularly in the Global South where external funding remains critical.
In this shifting landscape, Japan has emerged as a potential leader in bridging the immunisation gap. Despite rising domestic debates about foreign aid, Japan has reinforced its commitment to global health through renewed financial contributions and initiatives, including investments in vaccine manufacturing and universal health coverage. Building on its longstanding expertise in maternal and child health, Japan is positioned to play an important role in sustaining progress toward equitable and resilient health systems worldwide.