Secondary, non-primary classification tagging a disease entry or curation project with the NIH "Highlighted Topics" funding-priority area(s) it is relevant to. This captures grant-strategy relevance, NOT disease nosology, so an entry may carry several tags or none. The topics are transient (each expires ~2 years after posting); this enum is GENERATED from a dated snapshot (2026-07-12) by scripts/gen_nih_topics_enum.py -- do not hand-edit.