Affiliation: | (1) Centre for International Health, University of Bergen, Bergen, Norway;(2) School of Nursing, Muhimbili University College of Health Sciences, Dar es Salaam, Tanzania and Ministry of Health (P.H.N., Morogoro), Africa;(3) Department of Microbiology and Immunology, Muhimbili University College of Health Sciences, Dar es Salaam, Tanzania, Africa;(4) Haydom Lutheran Hospital, Mbulu District, Manyara, Tanzania, Africa |