Tuberculosis (TB) and human immunodeficiency virus (HIV) can be considered adeadly human syndemic. In this article, we formulate a model for TB and HIVtransmission dynamics. The model considers both TB and acquired immunedeficiency syndrome (AIDS) treatment for individuals with only one of theinfectious diseases or both. The basic reproduction number and equilibriumpoints are determined and stability is analyzed. Through simulations, we showthat TB treatment for individuals with only TB infection reduces the number ofindividuals that become co-infected with TB and HIV/AIDS, and reduces thediseases (TB and AIDS) induced deaths. Analogously, the treatment ofindividuals with only AIDS also reduces the number of co-infected individuals.Further, TB-treatment for co-infected individuals in the active and latentstage of TB disease, implies a decrease of the number of individuals thatpasses from HIV-positive to AIDS.
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