Josep O. Dalmau, Editor of Neurology: Neuroimmunology & Neuroinfammation introduces the podcast inverview. Dr. Laura Benjamin interviews Dr. Don Gilden about his paper Widespread arterial infection by varicella zoster virus explains refractory giant cell arteritis.J. Damlau is the editor of Neurology: Neuroimmunology & Neuroinflammation, is on the editorial board for Neurology UpToDate, holds patents for and receives royalties from Ma2 autoantibody test, NMDA receptor autoantibody test, GABA(B) receptor autoantibody test, GABA(A) receptor autoantibody test, DPPX autoantibody test, IgLON5 autoantibody test, received research support from Euroimmun, NIH, Fondo de Investigaciones Sanitarias de la Seguridad Social (Spanish Government); L. Benjamin reports no disclosures; D. Gilden is a senior Associate editor for Journal of NeuroVirology, is on the editorial board for In Vivio, Journal of Virology, Scientific American Medicine, Virus Genes, Neurology, Journal of the Neurological Sciences, received research support from NIH;