CBD HIV transmission prevention research published in Mucosal Immunology found that cannabidiol disrupted HIV-1 infection across multiple immune cell populations in laboratory and human tissue models. Researchers at Institut Cochin identified a TRPV1-CGRP signaling mechanism that appeared to suppress viral transmission at mucosal entry points. Dr. Caplan explains what the study actually showed, what remains unknown, and why this finding is biologically important without yet changing clinical practice.