Legionnaires’ disease remains an uncommon and mainly sporadic respiratory infection with an overall notification rate in 2019 for the EU/EEA of 2.2 cases per 100 000 population.
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 17-23 January 2021 and includes updates on Legionnaires' disease, COVID-19, dengue, influenza, avian influenza A(H5N6), avian influenza A(H9N2), poliomyelitis and chikungunya.