Dear colleagues,

We are pleased to invite you to the “28th International Complement Workshop (ICW 2021) to be held in Berlin, Germany, from September 19th to 23rd, 2021.

In these Covid times it is difficult to predict the exact outcome. With first immunizations being started in December 2020 in Europe and being planned for January 2021 in Germany we are optimistic that we will provide a personal meeting in the Center of Berlin. The new venue is the Scandic Hotel at the city center of Berlin at the Potsdamer Platz.

This ICW Berlin 2021 meeting will be the first Complement meeting after now two years and it is time to learn about new developments, to present, discuss your latest results with colleagues and experts, and last but not least and most importantly -after all this time- have personal exchange with your friends and colleagues in the field.

We look forward to seeing you in Berlin, in 2021.

Local organizing committee

Peter F. Zipfel, chair
Christine Skerka, co-chair
Nils Riedemann
Olaf Straus