HLA Typing in Practice: The Results That Prevent a Severe Drug Reaction — and the Ones That Only Rule Out Disease

Which HLA results prevent severe hypersensitivity to abacavir, carbamazepine, and allopurinol, how to read celiac, HLA-B27, and narcolepsy associations without over-reading them, and when a genome-derived HLA call needs a dedicated laboratory test before anyone acts on it.