Optimization of Site Selection for Emergency Medical Facilities considering the SEIR Model

Table 2

Parameters of SEIR model and their instructions.

Parameter	Instruction
S (t)	The number of susceptible people at time t
E (t)	The number of exposed people at time t
I (t)	The number of diagnosed infected people at time t
R (t)	The cumulative number of recovered people at time t
	The time delay of incubation period
	The time delay of treatment observation period
	The probability of exposed people
	The transmission coefficient of diagnosed infected people
	The number of patients who are contacted by susceptible people
	The number of patients who are contacted in the first stage
	The number of patients who are contacted in the second stage
	The number of patients who are contacted in the third stage
	The recovery probability of diagnosed infected people
	Stage 1, the recovery rate of infected people when medical supplies are scarce
	Stage 2, the recovery rate of infected people when the medical supplies are fully prepared
	Stage 3, the recovery rate of infected people when the medical supplies are sufficient