Аннотация
Helmut Hahn, medical microbiologist and immunologist, professor emeritus of the Charite University Medicine in Berlin, past president of the Berlin Medical Association, co-founder of the Koch-Mechnikov Forum (KMF) and foreign member of the Russian Academy of Medical Sciences, has been active in Russian-German collaborative activities in biomedicine and healthcare for more than 14 years. The list of merits, honours and acknowledgements is even longer than the ones I chose to introduce him and in parallel to illustrate his wide range of activities and interests in the first sentence.