Has anyone else had IVIG transfusions for immune system after stem cell transplant? I had SCT may 28, 2024. I started maintenance chemo in September. The treatment wiped out immune system, a common occurrence. I learned there are 3 markers, IGA (sinuses and stomach) IGG, (viruses and bacteria), and IGM, (general immunity). I had two treatments a month apart. IGG went from 66 to 792. IGA marker will not budge. Anyone else have this issue. Does it just take longer for IGA to go back to normal? Thanks.