Pfizer confirms no safety issue after particles found in COVID-19 vaccine in Japan

September 24, 2021 | 18:00

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Pfizer confirms that there is no safety issue regarding the presence of white/off-white opaque amorphous particles found in vials of the new coronavirus vaccine in Japanese cities.

Pfizer confirms no safety issue after particles found in COVID-19 vaccine in Japan

Pfizer-BioNTech COVID-19 vaccine was confirmed safe

Pfizer made the announcement when contacted by VIR. “We have conducted a full investigation of the reports from Kamakura-city, Sagamihara-city, and Sakai-city related to white/off-white opaque amorphous particles found in vials,” said a representative of the company.

“These particles have been determined to be an intrinsic component of the vaccine and are not attributable to a product quality issue,” he added. “Pfizer places the utmost emphasis on patient safety and product quality at every step in the manufacturing and supply chain process.”

Earlier, the cities said they did not use the doses containing the foreign matter while continuing to administer doses bearing the same lot number that were confirmed not contaminated.

Last month, Japan was said to halt the use of around 1.63 million doses of Moderna Inc.'s COVID-19 vaccine as a precaution after foreign substances were discovered in numerous vials.