brain, spinal cord, and nerve disorders
Myasthenia Gravis
Neonatal myasthenia
Neonatal myasthenia develops in 12% of babies born to women who have myasthenia gravis. Antibodies against acetylcholine receptors, which circulate in the blood, may pass from a pregnant woman through the placenta to the fetus. In such cases, the baby has muscle weakness that disappears several days to a few weeks after birth. The remaining 88% of babies are not affected. 