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Article History

Received: 9 July 2020

Accepted: 12 January 2021

First Online: 2 February 2021

Ethics approval and consent to participate

: Not applicable. Analysis based on secondary analysis of anonymized data where no individual data could be identified so formal ethical clearance was not required. Approval was received from the Institutional Review Board of the Centers for Disease Control and Prevention, Atlanta, USA. Permission to use the data were obtained from the Action Contre la Faim International network, the organizations collecting the datasets.The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the Centers for Disease Control.

: Not applicable.

: All authors declare that they have no competing interests; no support from any organization for the submitted work; no financial relationships with any organizations that might have an interest in the submitted work in the previous three years; no other relationships or activities that could appear to have influenced the submitted work<b>.</b>