Why are enterovirus associated with myocardial damage treated so passively often ignored? why is the only treatment available ribavirin?)

Some basics: The enterovirus family includes dozens of individual strains including the poliovirus. They are well known for remaining asymptomatic in many who are infected while others have specific & potentially deadly consequences. Polio produced symptoms in about 30% but it was dramatic & affected children leading to well sponsored research that produced vaccines. More research is needed.