[1] Bahir Dar Univ, Coll Med & Hlth Sci, Dept Med Microbiol Immunol & Parasitol, POB 1383, Bahir Dar, Ethiopia
[2] Bahir Dar Univ, Biotechnol Res Inst, Bahir Dar, Ethiopia
[3] Raya Kobo Woreda Hlth Off, Kobo, Ethiopia
[4] Dessie Referral Hosp, Dessie, Ethiopia
[5] Felege Hiwote Referal Hosp, Dept Internal Med, Bahir Dar, Ethiopia
[6] Amhra Publ Hlth Inst, Bahir Dar, Ethiopia
[7] Bahir Dar Univ, Sch Publ Hlth, Dept Epidemiol, Bahir Dar, Ethiopia
[8] Addis Ababa Univ, Coll Med & Hlth Sci, Dept Med Microbiol Immunol & Parasitol, Addis Ababa, Ethiopia
[9] Armauer Hansen Res Inst, Addis Ababa, Ethiopia
[10] Univ Leipzig, Fac Med, Inst Clin Immunol, Leipzig, Germany