Fateme Movahedi

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By sharing contaminated needles, injecting drug users contribute in a significant manner to the spread of the human immunodeficiency virus (HIV) in Asia and in some European countries. Furthermore, injecting drug users may also be sex workers, and risky sexual activities allow the virus to spread to other parts of the population. Mathematical models of(More)
Multi-stateMarkovmodels are an important tool in epidemiologic studies. One of thewellknown multi-state Markov models is the birth–death model that describes the spread of a disease in the community. In this paper, we obtain transition probabilities of a birth and death Markov process based on the matrix method. One of the important subjects in the(More)
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