“…In recent years, many scholars further revised the classical Ross-Macdonald model (see, e.g., [1,16,24]). Subsequent studies have extended the revised models to higher dimensions (see, e.g., [5,9,14,15,20,25]). For example, in 2015, Safan and Ghazi [20] proposed a fourdimensional ODEs model of malaria with standard incidence rates, and analyzed the local and global stability of equilibria of the model.…”