The Health Ministry of Japan has listed heart inflammation as a possible side effect of taking the Pfizer or Moderna COVID injections.
The government’s Ministry of Health, Labour and Welfare claimed that as of November 14, out of every million males who took the Moderna vaccine, inflammation of the heart and its outer lining were reported in 82 males aged 10 to 19 and 49 males in their 20s.
For the Pfizer vaccine, it was 16 for the 10-19 age range, and 13 out of a million for men in their 20s.
The ministry recommended during a meeting last week to put a disclaimer warning of “serious side effects” on the documents attached to the vaccines.
The government agency will also reportedly require hospitals to report in detail incidents involving people who developed inflammation symptoms within 28 days after receiving the injection.
Though several people died in Japan as a result of the contaminated Moderna batch, Japan resumed the distribution of Moderna shots days later.