It is believed that the contaminant in the group of vaccines against COVID-19 from modern The Japanese public broadcaster NHK, which was delivered to Japan, reported that they are metallic particles, citing sources from Ministry of Health.

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Japan suspended use of 1.63 million doses of the Moderna vaccine on Thursday, more than a week after the national distributor received reports of contaminants in some vials.

The NHK report released late Thursday quoted the ministry as saying that the particle interacted with a magnet, making it a suspected metal.

Moderna has described it as a “particulate substance” that does not pose any safety or efficacy concerns.

The Health Ministry official in charge of vaccines was not immediately available when contacted by Reuters.

The ministry indicated that the suspension was a precautionary measure. However, this action led to several Japanese companies canceling the vaccination of their workers and the European Medicines Regulatory Authority launched an investigation.

Spanish drugmaker Rovi, which sells Moderna’s vaccines in markets other than the United States, said the contamination may be due to a manufacturing problem on one of its production lines and is conducting an investigation.

The Japanese government has not disclosed how many injections of the contaminated batch were actually administered. And Kyodo News Agency stated that at least 176,000 injections were given, according to its own tally of figures reported by local municipalities.

With Reuters information

HAVJ