We present a case of fulminant myocarditis in a preterm neonate born to a SARS-CoV-2-infected mother with COVID-19 disease. Despite complete separation after birth, cardiogenic decompensation initiated on day of life 7. Although the neonate tested negative for SARS-CoV-2, enterovirus viremia accompanied cardiac dysfunction, multiorgan failure, and neonatal death within 36 hours.