mRNA疫苗有可能引起年轻人心肌炎已经被证实，这个论文里有一段讲心肌炎的表现有多种形式，症状和新冠的心血管病情症状相似，所以究竟是新冠引起的还是疫苗引起的就很难判定了。这样若打了疫苗后又得了新冠，就有可能疫苗的副作用被认为是得了新冠的症状了。
“Third, myocardial injury and myocarditis is prevalent among patients with COVID-19 infection26,34. As COVID-19 vaccine rollouts often take place with background community COVID-19 infections, it could be challenging to identify whether increased incidence of myocarditis and related cardiovascular conditions, such as CA and ACS, is driven by COVID-19 infections or induced by COVID-19 vaccines.”
