Israel began administering boosters to risk groups in July and by the end of August expanded its campaign to include anyone above the age of 12, five months or more after a second dose. In data published late on Thursday, the Health Ministry reported nine cases of myocarditis within four age groups that comprised more than 1.5 million people who had received a booster shot. All were male, three were between the ages of 16 and 29 and six were in the 30-59 group. Most myocarditis cases are generally mild, the ministry said. They have urged the government to take more steps to rein in infections, such as limiting large crowds, and not to rely on boosters alone.
