Fetal microchimerism has also been confirmed in circulating immune cells of mothers.Whether these fetal cells are helpful or hurtful may vary in different people or circumstances.

• 母体血液中的免疫细胞里也发现了胎源微嵌合，这些细胞究竟是帮手还是凶手，也许会因人因和状况不同而有差异。