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Article History

Received: 22 September 2020

Accepted: 22 February 2021

First Online: 10 March 2021

Declarations

:

: Ethics approval was obtained from the Catholic University of Health and Allied Sciences (CUHAS; Lake Zone Institutional Review Board MR/53/100/307)); the Conjoint Health Research Ethics Board (CHREB) at the University of Calgary in Canada (Study ID REB14-0127); the National Institute of Medical Research (NIMR) of Tanzania; and the Tanzania Commission for Science and Technology (COSTEC). Support letters were obtained from the DMO and DEO. School teachers informed the parents and requested written consent from a parent of each student before data collection started. After the study, in November 2014, the DMO, DEO, and teachers were informed of overall outcomes of the study, e.g. prevalence of helminth infections in the children at each school. Individual results were communicated by a health expert of the research team to the local authorities only if DMO provided anthelmintic treatment (albendazole or mebendazole) was not deemed sufficient to ensure the health of the child.

: Not applicable.

: The authors declare that they have no competing interests.