Japanese doctors diagnosed the Pfizer COVID-19 vaccination side effect, the Japanese Prime Minister's office reported.

According to the statement, one of the participants developed hives, which could be a possible side effect. The office said in a statement that the Japanese health ministry continues to collect information on possible side effects and takes the necessary safety measures, including monitoring the status of those vaccinated for more than 15 minutes after the procedure.

Last year, Japan signed agreements with the British-Swedish company AstraZeneca, the American Moderna, and the American-German consortium Pfizer and BioNTech to supply drugs for the coronavirus.