MyocarditisCoxsackievirus InfectionsEnterovirus B, HumanAcute-Phase ReactionAcute-Phase ProteinsAcute DiseaseAutoimmune DiseasesMyocardiumChagas CardiomyopathyEnterovirus InfectionsSerum Amyloid A ProteinHaptoglobinsCardiomyopathy, DilatedEnterovirusOrosomucoidRats, Inbred LewCardiovirus InfectionsEncephalomyocarditis virusTurpentineCardiac MyosinsTrypanosoma cruziBiopsyVirus DiseasesEndocardiumDisease Models, AnimalReoviridae InfectionsPericarditisMice, Inbred BALB CHeartMyosinsChagas DiseaseEdema, CardiacCardiomyopathiesGiant CellsC-Reactive ProteinInterleukin-6Time Factorsalpha 1-AntichymotrypsinCytokinesElectrocardiographyInflammationMucocutaneous Lymph Node SyndromeMice, Inbred C57BLSerum Amyloid P-ComponentAutoantibodiesParvovirus B19, HumanFatal Outcome