Modeling the effects of contact tracing on COVID-19 transmission.

In this paper, a mathematical model for COVID-19 that involves contact tracing is studied. The contact tracing-induced reproduction number R q and equilibrium for the model are determined and stabilities are examined. The global stabilities results are achieved by constructing Lyapunov functions. The contact tracing-induced reproduction number R q is compared with the basic reproduction number R 0 for the model in the absence of any intervention to assess the possible benefits of the contact tracing strategy.