The prevalence of vertical transmission of human immunodeficiency virus and associated factors among exposed infants in Eastern Lake zone and Southern Highland of Tanzania: a cross... oleh Peter Richard Torokaa, Loveness Urio, Ambwene Mwakalobo, Godfrey Eriyo, Alex Sifael Magesa, Regnald Julius, Alice Kyalo, James N. Allan, David J. Osima, Focus M. Shao, Joseph Mziray, Leah Mtui, Theopista P. Mbago, Masanja Robert, Mukome A. Nyamhagatta, Michael Msangi, Maro Chacha, Hasra Charles, Grace Denis Mtui, Mtebe Majigo, Agricola Joachim