Moderna Inc mentioned on Wednesday it has withheld source of about 1.63 million doses of its Covid-19 vaccine in Japan after a report of contamination of vials with particulate issue, which it suspects requires a production line in Spain. While Moderna said no safety or efficacy troubles had been determined, http://nhulit2.nhu.edu.tw/community/viewtopic.php?CID=4&Topic_ID=106