On tuberculosis and COVID-19 co-infection

In their correspondence, the authors raised two important issues, namely the possible association between tuberculosis (TB) and coronavirus disease 2019 (COVID-19) (can infection by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) re-activate TB?), and the effects of TB on early mortality in co-infected patients. COVID-19 may boost tuberculosis given infection and mortality, further studies are needed <https://bit.ly/2Z2r5XO> The article is part of the scientific activities of the Global Tuberculosis Network (GTN); GREPI (Groupe de Recherche et d'Enseignement en Pneumo-Infectiologie), a working group from SPLF (Société de Pneumologie de Langue Française); SEPAR (Sociedad Española de Neumología and Cirugía Torácica); Moscow Society of Phtisiology and of the WHO Collaborating Centre for Tuberculosis and Lung Diseases, Tradate, ITA-80, 2017-2020- GBM/RC/LDA).