We are proud to announce that the management of the Ludwik Hirszfeld PAN Institute of Immunology and Experimental Therapy were congratulated by the Polish Academy of Science for our unit being awarded the scientific category A+ in the discipline of medical sciences in the evaluation for the years 2017-2021. Professor Marek Konarzewski emphasized that “being among the leading scientific units is a reason to be proud and confers a responsibility to maintain a high level of scientific research.” All the employees of the Institute are received words of recognition and wishes for further scientific successes.