Israel health officials have found a probable link between Pfizer Inc. and BioNTech SE’s coronavirus vaccine and dozens of cases of heart inflammation in young men following the second dose of the vaccine, the Health Ministry said late Tuesday.

The vaccine has been administered to more than 5 million people in the country, and the number of coronavirus cases has plummeted. The Health Ministry said on Wednesday that despite the possible link, it would expand its vaccination drive to 12-16 year olds. The U.S. Food and Drug Administration has authorized its use for this age group.

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