Adamson S Muula1,2
, John Chipeta3
, Seter Siziya4
, Emmanuel Rudatsikira5
, Ronald H Mataya6
and Edward Kataika7 
1Department of Community Health, University of Malawi, College of Medicine, Blantyre, Malawi
2Department of Epidemiology, University of North Carolina at Chapel Hill, North Carolina, USA
3National AIDS Commission, Lilongwe, Malawi
4Department of Community Medicine, University of Zambia Medical School, Lusaka, Zambia
5Departments of Global Health, Epidemiology and Biostatistics, School of Public Health, Loma Linda University, California, USA
6Department of Global Health, Loma Linda University, School of Public Health, Loma Linda, California, USA
7Department of Planning and Policy Development, Ministry of Health, Lilongwe, Malawi