A U.S. military official predicted a pause in the administration of the Moderna and Pfizer COVID-19 vaccines could happen if more cases of post-vaccination heart inflammation were detected, according to newly obtained emails.
Harry Chang, a U.S. Army lieutenant colonel, made the prediction on April 27, 2021—the same day the director of the U.S. Centers for Disease Control and Prevention (CDC) said the agency was not seeing a safety signal when it came to heart inflammation experienced after getting a COVID-19 vaccine.
Chang noted the pause in the administration of the Johnson & Johnson vaccine over blood clots and said an increased number of heart inflammation issues could trigger a similar action.
“A pause of the Pfizer/Moderna administration (much like the J&J blood clot pause) will have an adverse impact on US/CA vaccination rates; assessed as unlikely due to causes of myocarditis can come from multiple sources (eg. COVID, other conditions, other vaccines/prescriptions, etc),” Chang wrote in an email.
Myocarditis is a type of heart inflammation.
“However, increased reported #s & media attention is likely to trigger a safety review pause by ACIP/FDA,” he added, referring to the Advisory Committee on Immunization Practices, which advises the CDC on vaccines, and the U.S. Food and Drug Administration (FDA), which decides whether to clear immunizations.
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