Japan finds another Moderna vial suspected to contain foreign substance

FILE PHOTO: Vials with a sticker reading, "COVID-19 / Coronavirus vaccine / Injection only" and a medical syringe are seen in front of a displayed Moderna logo in this illustration taken October 31, 2020. REUTERS/Dado Ruvic

TOKYO (Reuters) -Japan reported a fresh contamination case involving Moderna's COVID-19 vaccine, the fourth such incident in less than a week, threatening to slow the country's sputtering inoculation campaign.

Kanagawa prefecture said on Tuesday several black particles in one Moderna vaccine vial were found upon checking for foreign substances before its use, and it has put the rest of the lot on hold.