Funding for this research was provided by:
Dioraphte Foundation, The Netherlands
Text and Data Mining valid from 2018-07-03
Received: 22 January 2018
Accepted: 25 June 2018
First Online: 3 July 2018
Ethics approval and consent to participate
: This study complies with the principles described in Declaration of Helsinki. This study was approved by the College of Medicine Research and Ethics committee in Malawi (proposal number P.03/16/1901). Written permission to conduct the study was provided by the District Health Officer of Chikhwawa district, south Malawi. The purpose and procedures of the study were explained in the local language, Chichewa, to local leaders and householders of the four villages and participating household heads and members. Households were only enrolled in the study after providing written consent prior to the start of the study. An impartial witness was present in cases where the head of the household was illiterate.
: Not applicable
: The authors declare that they have no competing interests.
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