Table 1 Lists of parameters for PRRSV transmission in the model

Vaccination coverage (\(\mathrm{year} ^{-1}\))

q

0.5

estimated

Natural birth rate of a swine population

b

34.45

estimated

Swine carrying capacity

K

300

–

Natural mortality rate of a swine population (\(\mathrm{year} ^{-1}\))

μ

2

[19]

Recovery rate (\(\mathrm{year} ^{-1}\))

γ

6.5

[20]

The basic reproduction number for calculating

\(R_{0}\)

3

[21]

a transmission coefficient

Transmission coefficient (\(\beta =R_{0} \frac{(\mu +\gamma )}{S^{0}}\))

β

0.087

Vaccination rate for susceptible swines (\(\mathrm{year} ^{-1}\))

u

2

estimated

Abortion proportion

r

0.2

estimated