Hi All I was recently treated for a sinus infection (staph a.) and the doctor tested my immune antibodies. He told me my gamma globulins were low. My total globulins often come out low on CBC tests, too. He gave me a pneumonia shot, because apparently that boosts the IgGs specifically (unike the flu vaccine, etc). So I got the vaccine and today (the day after) I feel so much better than I have felt in a long time. I was able to get up early and had a lot of energy. I know this boost will probably not last too long, but I wanted to find out if anyone has tried any other kind of gamma globulin therapy with success. Or is there a supplement I can take that boosts gamma globulin levels? I have tried taking colostrum and it did not agree with me.