Full read review of Neonatal lupus syndrome - caused by pathogenic maternal autoAbs (SSA, SSB) in fetal circulation. Mild Sxs in 25%, severe Sxs are rare; Heart block in up to 2% of neonates born to mothers with positive antibodies. https://t.co/iH4MBRGvg1 https://t.co/kXxIeQC47m