No.

parameter

Description

1

N

Total population

2

S

Susceptible to be expose for infection those of who interact with the disease

3

E

Exposed population that are infected but have not yet become infectious

4

I

Infected by the disease who are capable of transmitting the disease to any susceptible individuals.

5

R

Individuals recovered from infection who are temporarily immune from the infection

6

$\alpha$

Birth rate from the total population N

7

$\beta$

The rate of population exposed to the disease.

8

$\gamma$

The rate which will be infected from the population of exposed

9

$\omega$

The rate of getting immunity after sort of treatment in move to the recovered compartment from infected compartment.

10

$\theta$

The rate of populations loss their immunity and moved to the susceptible compartment.

11

$\varphi$

The rate of natural death