In a statement on Tuesday, prefectural authorities said a pharmacist found several black particles in one vial upon checking for foreign substances before the vaccine's use
While millions of people have already safely received COVID-19 vaccines, we recognize that for some, the FDA approval of a vaccine may now instill additional confidence to get vaccinated
The report quoted a source saying it was too early for the regulators to reach a conclusion, and that additional work was needed before any recommendation was made
Pfizer has said its vaccine's efficacy drops over time, citing a study that showed 84% effectiveness from a peak of 96% four months after a second dose.
Striking an increasingly exasperated tone, the WHO said the world would look back on itself with shame if it knowingly chose to leave the world's weakest at the mercy of the pandemic.
Johnson & Johnson's vector vaccine will contribute 18.3 million doses, and a total 70 million doses of vaccines from Sanofi, Novavax and Valneva will contribute the rest.
The vast nation of 1.3 billion people was hit by a massive spike in coronavirus cases in April and May that pushed the healthcare system to breaking point.