Which virus is most commonly associated with myocarditis?

The Coxsackie B virus is most commonly associated with myocarditis because it is a member of the enterovirus family, which is known to be a significant cause of viral myocarditis. This virus can infect the heart muscle, leading to inflammation and damage. Myocarditis is often a consequence of viral infections, and Coxsackie B virus is particularly implicated in both acute and chronic cases.

In children and young adults, the incidence of myocarditis following a Coxsackie B virus infection can be particularly notable, with the virus capable of evoking a strong immune response that contributes to myocardial inflammation. This association makes Coxsackie B virus a key focus in understanding viral-induced heart conditions.

While other viruses such as cytomegalovirus and West Nile virus can also lead to myocarditis, they are less commonly implicated than Coxsackie B virus, making it the most significant and recognized cause within this context.