Correction to: Scientific Reports 10.1038/s41598-017-11969-5, published online 18 September 2017
The original version of this article contained an error in the spelling of the author Susan C Morpeth, which was incorrectly given as Susan Morpeth.
Additionally, in this Article, an affiliation for Susan C Morpeth was omitted. The correct affiliations for Susan C Morpeth are listed below:
KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
London School of Hygiene & Tropical Medicine, London, UK
These errors have now been corrected in the PDF and HTML versions of the paper, and in the accompanying Supplementary Information.