Correction to: Malar J (2019) 18:156 https://doi.org/10.1186/s12936-019-2786-y

Please note that an author has been erroneously omitted from the author list of the published article [1].

The missing author (Ismail Aziah) was the supervisor of the corresponding author, and contributed in terms of review and discussion of the content of the manuscript.

Furthermore, please note that one of the affiliations of the corresponding author has been missed: the corresponding author is affiliated to affiliation ‘2’, in addition to affiliation ‘1’.

Please find the corrected author list in this article.

The authors apologize for any inconvenience caused.