Japan has agreed with Pfizer Inc. to purchase an additional 10 million COVID-19 vaccine doses by March, the health ministry said Monday, as the county trails other developed economies in its rollout of booster shots.The additional shots will add to the 120 million doses Japan already agreed to procure from the U.S. pharmaceutical giant for this year."The government will continue to negotiate with vaccine makers to ensure steady progress on speeding up administering booster shots," Shigeyuki Goto, minister of health, labor and welfare, told reporters.The deal came as Prime Minister Fumio Kis…READ FULL ARTICLE