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Updated: Oct 20, 2025

Delivery of Modified mRNA in a Myocardial Infarction Mouse Model
Published on: June 11, 2020
Post-mRNA COVID-19 Vaccination Myocarditis
Abhishek Matta1,2, Rekha Kallamadi1,2, Danielle Matta2
1University of North Dakota School of Medicine and Health Sciences, Grand Forks, USA.
Abstract:
A new trend of myocarditis among young adults who received mRNA vaccines for COVID-19 is emerging. We present the case of a young adult who presented with chest pain 3 days after the second dose of Pfizer-BioNTech COVID-19 vaccine. He had elevated troponin I and C-reactive protein levels at the time of admission. Electrocardiogram (ECG) and echocardiogram findings were unremarkable. The patient improved with conservative management and was discharged home the next day.
Learning Points:
Myocarditis is rare but is increasingly being reported in young adults post vaccination for COVID-19.Patients usually present with chest pain, elevated troponin and/or inflammatory markers.The condition carries a good prognosis and patients usually recover with supportive care.
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