A generalized "SVEIR" epidemic model with general nonlinear incidence rate has been proposed as a candidate model for measles virus dynamics. The basic reproduction number $ \mathcal{R} $. an important epidemiologic index. was calculated using the next generation matrix method. https://www.diegojavierfares.com/limited-time-Florida-Gators-NCAA-Mens-Highlights-Swimming-Trunks-p19075-limited-choice/