Japan has begun a new chapter of the pandemic ¡ª albeit one fraught with fresh challenges ¡ª after national coronavirus countermeasures were lifted completely for the first time in nearly half a year.

Over the next month, prefectural governors will take charge of gradually peeling back measures to prevent a viral rebound, while the central government, under new leadership, shifts its focus toward booster shots as it initiates the trial phase of its pandemic exit strategy.

This isn¡¯t the country¡¯s first attempt to revive the economy following a bout with the virus. But with more than 60% of the population fully vaccinated, a heated debate over the need for additional doses, the proliferation of the delta variant and the appointment Monday of a new prime minister, the coming weeks could bring a sea of change.