Okinawa prefecture has halted Moderna vaccinations after unknown materials were found in a vial of the drug. The move comes after Japan pulled 1.6 million Moderna doses from a different batch over contamination concerns.
Black substances were discovered in syringes and a vial, while unidentified pink substances were spotted in a different syringe with a Moderna vaccine dose, according to Japan’s public broadcaster, NHK.
Okinawa’s government said in a statement on Sunday that it was suspending the use of Moderna vaccines after “foreign substances were spotted in some of them.”
Takeda Pharmaceutical, Japan’s domestic distributor of the Moderna shot, is expected to probe whether the suspected contamination occurred during production and will consult with the health ministry on the matter, NHK reported.