Correction to: BMC Infect Dis

https://doi.org/10.1186/s12879-019-4749-x

After publication of the original article [1], we were notified that there is a mistake in the article note. Vernon J. Louw and Mark P. Nicol have been erroneously marked as equal contributors.

Gary Maartens and Estelle Verburgh have contributed equally to this work.