Mycoplasma pneumoniae epidemic in Denmark, October to December, 2023

Abstract

We report a surge of patients, especially children and adolescents, with respiratory disease caused by <i>Mycoplasma pneumoniae</i> in Denmark since October 2023. While the surge has reached an epidemic level, no impact on hospital capacity has been observed; only 14% (446/3,195) of cases, primarily adults, required hospitalisation. Macrolide resistance was detected in less than 2% of samples tested. Timely monitoring of hospitalisations linked to <i>M. pneumoniae</i> infections has been established to inform the healthcare system, decisionmakers and the public.