An Israeli study finds a slightly higher-than-expected rate of heart problems in vaccinated boys.

Myocarditis, or inflammation of the heart muscle, occurred in 1 of 12,361 boys aged 12 to 15 within a week of receiving a second dose of the Pfizer-BioNTech vaccine, researchers found.
By Apoorva Mandavilli from NYT Health https://ift.tt/3H7cb7o
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