On behalf of the German Society of Immunology (DGfI) and the Austrian Society for Allergology & Immunology (ÖGAI), we are pleased to invite you to our joint annual meeting in Hannover, from September 7th to 10th 2022 at Hannover Medical School. With this upcoming joint meeting, we would like to continue the series of successful joint meetings in 1995 and 2008 Vienna.