Dr. Isaac Mwangi Wangari is a Mathematics lecturer in the Department of Mathematics and Computer Science of the School of Pure and Applied Sciences (SPAS) at Bomet University College. He obtained his Phd in applied mathematics (in particular mathematical biology) at the Royal Melbourne Institute of Technology (RMIT) (in Australia). He holds a Masters degree in applied mathematics from the University of Kwazulu Natal and a postgraduate diploma (PGD) in mathematical sciences from the African Institute of Mathematical Sciences (AIMS), both from South Africa. He graduated from the University of Nairobi with a BSC (mathematics) degree. Dr. Wangari's research interest is in mathematical biology (Biomathematics), in particular applying mathematical concepts to model how infectious disease spreads within a population, and how the spread can be mitigated through treatment and/or vaccination. During his Ph.D. studies, he worked on a project titled "Backward bifurcation and reinfection in mathematical models of tuberculosis," which involved investigating how new complex bifurcation structures emerge in dynamical systems. He has published in peer reviewed and scientifically respected journals and his past and recent work can be freely accessed online from: https://www.semanticscholar.org/author/Isaac-Mwangi-Wangari/29397960. Currently, he is interested in modelling the intricate dynamics of infectious diseases such as the recent pandemic-SARS-CoV-2 by applying optimal control theory. Further, Dr. Wangari has in the past taught mathematics at various Kenyan Universities and these include: Kiriri Women’s University of Science and Technology, Dedan Kimathi University of Technology, Karatina University and Catholic University of Eastern Africa. Besides teaching experience of over four years, he has also supervised three Masters students at Catholic University of Eastern Africa. He has also attended conferences both locally and internationally, e.g., University of Kwazulu Natal Siyacabanga conference, Complexity and Biology: Tick-borne diseases dynamics for wildlife, livestock and humans held in UKZN Campus, Pietermarzburg, Kwazulu Natal, South Africa (12-14 March, 2013).