Rota, M.C. et al. 2021. Legionella pneumophila and SARS-COV-2 co-infection: the importance of laboratory diagnosis. Annali dell’Istituto Superiore di Sanità. 57, 3 (Sep. 2021), 199–200. DOI:https://doi.org/10.4415/ANN_21_03_01.