How many different diseases are there?
I am wondering if anyone knows how many disesases have been identified/diagnosed throughout the world. I tried searching the NIH sites but, well, good god there is so much information I don't even know where to start or what search terms to use for this question! I would think that different medical bodies world-wide have differing opinions on the number of diseases there are, so any information about how the total number of diseases is arrived at would be very helpful. Thanks!
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