Fig. 1From: Projected economic evaluation of the national implementation of a hypothetical HIV vaccination program among adolescents in South Africa, 2012Model depicting the semi-Markov model of the HIV vaccination strategy. Healthy vaccinated and unvaccinated individuals may enter into a HIV positive state. They can progress from a HIV infection state to the HIV treatment pool. All states may progress to a death states at a rate specific to the state they were currently inBack to article page