? about Buster's flowchart

[JAG10]

Can someone tell me what is PID in box 23?

[sf_mom]

Primary Immune Deficiency

[Megs_Mom]

Here is a great website where you can learn about PID & other immune deficiencies. There is even a book that you can print - and if you are like me, read slowly over a few weeks! http://www.primaryimmune.org/publications/...s/book_pats.htm