Ethics statement
The University of Zambia Biomedical Research Ethics Committee (UNZA BREC; ref number 007-04-19) and the London School of Hygiene and Tropical Medicine (ref number 17104) approved the Yathu Yathu CRT. All AYP were asked for written informed consent to participate in the endline survey. A waiver of parental consent for AYP aged under 18 years was granted from UNZA BREC and LSHTM, as parents/guardians provided consent during enumeration and PPC distribution and, during the P-ART-Y study conducted in the same communities, CAB and aCAB members asked for waiver of parental consent. The study was approved by the National Health Research Authority, Zambia.The trial registration numbers are: NCT04060420 