Funding for this research was provided by:
Family Larsson‐Rosenquist Foundation (51708)
International Development Research Centre (108416-002 & 108640-001)
Norwegian Agency for Development Cooperation (QZA-16/0395)
Bill & Melinda Gates Foundation (OPP1171560)
UNICEF (PCA 20181204)
Received: 21 May 2019
Accepted: 2 June 2020
First Online: 10 June 2020
Ethics approval and consent to participate
: Ethics approval was obtained from the ethics review committee of The Aga Khan University and the IRB Afghanistan.
: Not applicable.
: All the authors declare no conflict of interest.