[1] Armauer Hansen Res Inst, Lab Directorate, Addis Ababa, Ethiopia
[2] Surveillance & Hlth Serv Res, Amer Canc Soc, Atlanta, GA USA
[3] Management Sci Hlth, Diagnost Team, Addis Ababa, Ethiopia
[4] St Pauls Hosp Millennium Med Coll, Dept Microbiol, Addis Ababa, Ethiopia
[5] Armauer Hansen Res Inst, Data Management & Biostat, Addis Ababa, Ethiopia
[6] Armauer Hansen Res Inst, Bacterial & Viral Dis, Addis Ababa, Ethiopia
[7] Addis Ababa Univ, Dept Med Lab Sci, Addis Ababa, Ethiopia