List of Articles Basic reproduction number Open Access Article Abstract Page Full-Text 1 - Mathematical Model for Transmission Dynamics of Typhoid Fever With Optimal Control Strategies Mamo Wameko Purnachandra Koya Alemu Wodajo Open Access Article Abstract Page Full-Text 2 - Stability analysis of the transmission dynamics of an HBV model R. Akbari A. Vahidian Kamyad A. A. Heydari A. Heydari