TOKYO — The Japanese Health Ministry has suspended the use of about 1.6 million unused doses of the Moderna coronavirus vaccine after reports of contamination, a Japanese distribution company of the vaccine announced Thursday.
Takeda Pharmaceutical, which sells and distributes the Moderna vaccine in Japan, said no health issues were reported among the people who were inoculated from the contaminated batch and asked medical professionals administering the vaccine doses to make sure there is no visual abnormality before giving the shot.
Takeda and the Health Ministry said the unknown contamination materials were a few millimeters in size, and Takeda said in a statement that it has asked for an emergency investigation by Moderna.
Moderna confirmed in a statement to Reuters that it had been notified of “cases of particulate matter being seen in drug product vials of its COVID-19 vaccine” and that it is investigating the matter.
Spanish pharmaceutical firm Rovi said Thursday that no safety or efficacy issues have been identified in relation to the Moderna vaccine so far, according to Reuters.
Rovi said in a statement that the origin of the incident may be in one of its manufacturing lines and that it was conducting an investigation following the standard procedure for such cases. It said two adjacent lots had been put on hold as a precaution.
The news comes as Japan’s coronavirus cases show no sign of dwindling. About half of the population has received one dose of the vaccine. Nearly the entire elderly population in Japan is fully vaccinated.
Meanwhile, a Tokyo Paralympics-related visitor to Japan has been hospitalized with covid but is not displaying any severe symptoms, Games officials said Thursday, adding that the person was not an athlete. So far, five athletes who are residing inside the Paralympic Village have tested positive for the coronavirus. More than 4,000 athletes are competing in the Paralympic Games over the next two weeks.
Thomas Bach, president of the International Olympic Committee and a widely criticized figure in Japan, left Japan on Wednesday night after visiting for the Paralympic Games. On Wednesday, Japan’s top covid-19 adviser blasted Bach for returning to Tokyo after leaving just two weeks ago at the end of the Olympics: “I wonder why he bothered to come. He should be able to judge with normal, common sense,” said Shigeru Omi, Kyodo News reported.