On Mar. 5, 2024, the World Health Organization announced that In February 2024, Austria, Denmark, Germany, Sweden and The Netherlands reported an increase in psittacosis cases observed in 2023 and at the beginning of 2024, particularly marked since November-December 2023.

Five deaths were also reported. Exposure to wild and/or domestic birds was reported in most of the cases. Psittacosis is a respiratory infection caused by Chlamydophila psittaci (C. psittaci), a bacteria that often infects birds.