Document is current

Article History

Received: 22 December 2017

Accepted: 7 August 2018

First Online: 4 October 2018

Ethics approval and consent to participate

: The HDSS site received ethical clearance from Research Ethics Review Committee of University of Gondar, Ethiopian Public Health Association (EPHA), and US Center for Disease Control and Prevention (CDC). To capture occurrence of the events to any family member, head of a family or an eligible adult among the family was interviewed. At the beginning of the surveillance system in 1996, written consents were obtained from each household in the surveillance site, and it is also done when there exists new immigrant. After that for consecutive data collection periods, we just obtain informed consents. Therefore; for this particular study, informed verbal consent was obtained from head of the family or eligible adult among the family. This consent procedure was stated in the proposal which was approved by the ethical review committees. To keep confidentiality, data containing personal identifiers of subjects were not shared to third party.

: Not applicable.

: We declared that none of the authors have any competing interests in the manuscript.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.