http://www.newsweek.com/moderna-vaccine-recall-contamination-stainless-steel-human-error-takeda-covid-1634598 > Human error was the cause of steel contamination discovered in some Spanish-made Moderna vaccine doses earlier this year, a report has found. > In August, authorities in Japan ordered that three batches of Moderna shots, equivalent to about 1.6 million doses, would have to be recalled because particles of stainless steel were discovered inside.