Mr. Method Donald Segeja is a Senior Research Scientist with the National Institute for Medical Research (NIMR) based at Tanga Medical Research Centre. He received his Master degree in International Health (MIH) from the University of Copenhagen, Faculty of Health Sciences in 2000. He obtained his Bachelor of Science (BSc General) degree in Microbiology and Marine Biology from the University of Dar es Salaam, Tanzania in 1996. He also holds a Certificate in Fisheries Science obtained at Nyegezi Fisheries Institute, Mwanza, Tanzania in 1988 & Diploma in Fisheries Science at Kunduchi  Fisheries Institute, Dar es Salaam, Tanzania in 1990  He is a permanent employee of  NIMR since 1996  to date.

His research activities focus on designing, planning and conducting studies in biomedical sciences such as malaria immunology, field trials on malaria vaccines, clinical trials on malaria and lymphatic filariasis drug efficacy at community level. He actively participated in several studies concerning malaria transmission intensities in some districts of Tanga, Kigoma, Geita, Ruvuma and Mtwara regions of Tanzania. He also participated in clinical trial of malaria vaccines candidate (MSP3) in Korogwe and human genetic disorders (G-6-PD & HbS) in Muheza, Tanga, Tanzania. Mr. Method D. Segeja has co-authored more than 12 peer reviewed health research articles as per PubMed.