Correction to: BMC Infect Dis 20, 769 (2020)

https://doi.org/10.1186/s12879-020-05486-6

Following publication of the original article [1], an error was identified in one author’s affiliations: Dr. Siri Helene is also affiliated to the Department of Biostatistics, Oslo Centre for Biostatistics and Epidemiology, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.