Owen Mugurungi, Ministry of Health and Child Care AIDS &amp;amp; TB Unit, Harare, Zimbabwe mugurungi@gmail.com
Tsitsi Juru, University of Zimbabwe, Department of Primary Health Care Sciences, Family Medicine, Global and Public Health Unit, Harare, Zimbabwe, jtsitsi@afenet.net
Addmore Chadambuka , University of Zimbabwe, Department of Primary Health Care Sciences, Family Medicine, Global and Public Health Unit, Harare, Zimbabwe, achadambuka1@yahoo.co.uk
Notion Gombe,  African Field Epidemiology Network, Harare Zimbabwe 
Gerald Shambira, University of Zimbabwe, Department of Primary Health Care Sciences, Family Medicine, Global and Public Health Unit, Harare, Zimbabwe, gshambira@afenet.net
Mufuta Tshimanga, University of Zimbabwe, Department of Primary Health Care Sciences, Family Medicine, Global and Public Health Unit, Harare, Zimbabwe, Mtshimanaga@afenet.net