Funding for this research was provided by:
University of Georgia Research Foundation Inc. (RR374-053/4893206, RR374-053/4893196)
Bill and Melinda Gates Foundation (OPP1191423)
Received: 13 April 2018
Accepted: 4 October 2018
First Online: 23 October 2018
Change Date: 28 March 2019
Change Type: Correction
Change Details: Following publication of the original article , the authors flagged that unfortunately an error had been introduced to the Conclusions section of the article’s Abstract, during production of the article.
Ethics approval and consent to participate
: Our study protocol was approved by the Zanzibar Medical Research Ethics Committee (ZAMREC) in Zanzibar, United Republic of Tanzania (reference no. ZAMREC 0003/Sept/011), the Ethics Committee of Basel, Switzerland (reference no. EKBB 236/11), and the Institutional Review Board of the University of Georgia in the USA (project no. 2012-10138-0) [CitationRef removed]. The study is registered with the International Standard Randomized Controlled Trial Number register (ISRCTN48837681). All children and adults invited to participate in the study received a participant information sheet and a consent sheet. The study was explained in lay terms to the children in school and to the adults in the communities using the local language Kiswahili. Only individuals, who submitted a written informed consent for their participation, were included in the study. In the case of children, parents or their legal guardians were asked to provide their written consent for the child’s participation. All study participants were offered praziquantel (40 mg/kg) against schistosomiasis and albendazole (400 mg) against soil-transmitted helminthiasis free of charge <i>via</i> the biannual island-wide mass drug administration conducted as part of the elimination interventions by the Zanzibar Neglected Diseases Programme in 2013, 2014, 2015 and 2016.
: Not applicable.
: The authors declare that they have no competing interests.
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