LUND, Sweden, June 9, 2025 /PRNewswire/ — Hansa Biopharma AB, “Hansa” (Nasdaq Stockholm: HNSA) today announced that it will host a virtual investor event on Guillain-Barré syndrome (GBS) on Monday, June 16, 2025 at 14:00 CEST / 8:00 AM EDT. Pre-registration is required and can be found…