Received: 13 January 2020
Accepted: 10 June 2020
First Online: 26 June 2020
Ethics approval and consent to participate
: The Human Research Ethics Committees of the University of Canberra (20180074) and the Indian Institute of Public Health Delhi (IIPHD_IEC_03_2018 provided ethical approval for this study. Regulatory permissions were obtained from the Kerala Department of Health (GO(Rt)No2677/2018/H&FWD) and the local administration in Attapadi. All participants gave informed consent prior to data collection.
: Not applicable.
: The authors declare that they have no competing interests.