Immunoglobulins are proteins that tell our white cells to defend against invaders. They are what we form after an infection or after an immunisation. In normal systems, they activate our white cells to attack and destroy the invaders. This is what may cause fever and symptoms of illness. Lymphoma is cancer of the immune cells, B or T cells. So with lymphoma, it is important to get full information from your specialist or nurse team so you know what each patient's situation is. They will tell you what you need to know, because everyone is different.
Mine haven't been tested yet, so I can't tell you about my experience. But the best thing to do is continue with infection avoidance, wear N95 mask in crowded venues and transport, don't hang with sick people or people who have been in contact with sick people, look after your environnment and make sure all the good things are going in to build your best immune response.
There is unlimited bacteria, virus and other micro-organisms that can cause infection, so good hygeine, food handling and cleaning habits are the best way to prevent. There are some good articles on this site if you search.
Hope this helps

Do everything you can to take care of yourself I hope you have Simone special by your side to hold your hand someone to cry on when need be and of corse someone to love you Be well

I am having a test for my IgG levels post chemo and may have to do the same. Just living in ignorant bliss at the moment. Fingers crossed.

I'm so sorry. It's a scary time. Hang in there. Some of the best medicine is her knowing you love her and support her.

Thanks I away of the things you mentioned I hoping this treatment will help raise her ability to fight infection t her. EBC is 1.9 that very low they have to find out why this is so I’m scared out of my mind we. Have been d ping everything we’re supposed to do seeing her sick is breaking me uo