diseases are poorly characterised. We aimed to describe humoral responses following two
doses of BNT162b2 mRNA COVID-19 vaccine and identify risk factors for impaired
responses. Methods Prospective cohort study including adults with chronic pulmonary
diseases and healthcare personnel as controls (1: 1). Blood was sampled at inclusion, 3
weeks, 2 and 6 months after first vaccination. We reported antibody concentrations as …