US Military Confirms Myocarditis Spike After COVID Vaccine Introduction

There were 275 cases of myocarditis in 2021—a 151 percent spike from the annual average from 2016 to 2020, according to Gilbert Cisneros Jr., undersecretary of defense for personnel and readiness, who confirmed data revealed by a whistleblower earlier this year.

The COVID-19 vaccines can cause myocarditis, a form of heart inflammation that can lead to mortality, including sudden death. COVID-19 also can cause myocarditis.

The diagnosis data comes from the Defense Medical Epidemiology Database.

Mr. Cisneros provided the rate of cases per 100,000 person-years, a way to measure risk across a certain period of time. In 2021, the rate was 69.8 among those with prior infection, compared to 21.7 among members who had been vaccinated.

“This suggests that it was more likely to be [COVID-19] infection and not COVID-19 vaccination that was the cause,” Mr. Cisneros said.

No figures were given for members who had been vaccinated but were also infected. The total rate, 20.6, also indicates that some members weren’t included in the subgroup analysis.

Sen. Ron Johnson (R-Wis.), who has been investigating problems with the database, questioned how the military came up with the figures.