I think instituting  Mother to mother support group in the health facility   is quite essential strategy and defiantly contribute a lot  to HIV free child survival in the near future.
Because, MSG (mother support group) or mother to mother  approach:
1.lessens HIV-related stigma and discrimination,
2.increase HIV-positive mothers’ understanding of infant feeding options, breast care and attachment (Tertiary prevention)
3.Reduce the incidence of new sexually transmitted infections and HIV among girls and women  ( they can teach in the health facility and in the community  for primary prevention purpose  )
Increase acceptance and use of family planning among all postpartum women and including all HIV positive mothers  ( for secondary prevention )
Help to build  strong linkages with other ART....programs and services that strengthen women’s health
helps to improve decision making (e.g., nutritional support, condom utilization, income-generating activities and skills training).
Improve counseling
The trained mothers mentors as expert patient trainers (EPTs )  can also contributes a lot to improve the quality of the comprehensive PMTCT/MNCH training while they are introduced in skill station