When this article was originally published in Epidemiology and Infection the supplementary material was uploaded incorrectly. This has now been updated, and the correct supplementary material is now online.
The publisher apologises for this error.
Published online by Cambridge University Press: 28 May 2025
When this article was originally published in Epidemiology and Infection the supplementary material was uploaded incorrectly. This has now been updated, and the correct supplementary material is now online.
The publisher apologises for this error.