Study funding No targeted funding reported. Disclosure M. Dalakas is an associate editor for Neurology: Neuroimmunology & Neuroinflammation. Disclosures available: Neurology.org/NN. Glossary ACE-2 angiotensin-converting enzyme 2 AIDP acute inflammatory demyelinating polyneuropathy AMAN acute motor axonal neuropathy CK creatine kinase CRP C-reactive protein GBS Guillain-Barré syndrome ICU intensive care unit IVIg intravenous immunoglobulin MERS Middle East respiratory syndrome MFS Miller Fisher syndrome NAM necrotizing autoimmune myositis