Variational Iteration Method and Differential Transformation Method for Solving the SEIR Epidemic Model

Table 1

Parameters and initial conditions of the SEIR model.

Parameter	Definition
	Average number of people infected by an infectious person over the average duration of infection
	Number of exposed people over the average latency period
	Number of infected people over the average duration of infection
	The death rate of people
	The birth rate parameter of people
	The cure rate of people
	Force of infection in the baseline scenario
	Average daily number of international inbound air passengers
	Average daily number of domestic inbound air passengers
	Average daily number of international outbound air passengers
	Average daily number of domestic outbound travellers
	Number of susceptible people at time
	Number of asymptomatic and noninfectious people at time
	Number of asymptomatic but infectious people at time
	Number of recovered people at time
	Total number of population,