Mohammad (PBUH) told us the only true scientific book you will need is from the Holy Qu'ran.
If you are looking for advice on immunity, it is Djinn which cause people to fall ill.
I advise going to masjud to learn the glory of Holy Qu'ran
Immunology is a complex topic. Unless you took A-levels in chemistry and biology fairly recently, you're unlikely to learn much from a typical undergraduate immunology textbook. An introductory course in biology from Coursera or Khan Academy might be a good start; if you're really keen, you could do A-levels or an Access to HE course at your local FE college.
>>6587 Immunology looks fascinating and incredibly complex. As the previous poster pointed out, if you have no formal training you're probably going to be reading gibberish. Hell, I have a Chemistry A-level and a degree in Physics (he wrote smugly) and I doubt I'd get much of what I was reading, at least at the level where I wasn't just repeating things by rote.
If you really want to study immunology, which is a highly admirable ambition, I'd recommend first studying chemistry at an adult education college then seeing what mature student courses are available. From what I understand mature students are sought after since they're genuinely pursuing a dream as opposed to wandering into x subject since they assume uni is what they should do at that age.
>>6587 I'd recommend "Biology: The Science of Life" by Robert A. Wallace, if you can find it. It's just a general biology textbook, but well written and a good introduction.
It will be rough going no matter what. You basically have to memorize an alphabet soup of enzymes and ligands. Worse, everything is unintuitively named because it was discovered by accident or for some reason unrelated to its function. For example, the enzyme "XP" is named after the disease it causes, Xeroderma Pigmentosa, rather than its function (DNA repair).
t. used to work in the immunology department at MIT.
