Israel's Health Ministry said on Tuesday it had found the small number of heart inflammation cases observed mainly in young men who received Pfizer's COVID-19 vaccine in Israel were likely linked to their vaccination.
Pfizer said in a statement that it was aware of the Israeli observations of myocarditis and said no causal link to its vaccine had been established.
It said adverse events are thoroughly reviewed and Pfizer meets regularly with the Vaccine Safety Department of the Israeli Ministry of Health to review data.