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Table 1 State variables for the SEIR equation models

From: Early rigorous control interventions can largely reduce dengue outbreak magnitude: experience from Chaozhou, China

Variables Explanation Values Sources
Sh Number of susceptible humans - -
Eh Number of exposed humans - -
Ih Number of infectious humans - -
Rh Number of recovered humans - -
Sv Number of susceptible mosquitoes - -
Ev Number of exposed mosquitoes - -
Iv Number of infectious mosquitoes - -
Nh Total human population size 600,000 statistic yearbook
Nv Total mosquito population size - -
Ψh Per capita birth rate of humans. Time−1 1/(70*360) Estimation
Sv(0) Initial values of susceptible mosquitoes 1,987,800 MCMC Fitting
Ev(0) Initial values of exposed mosquitoes 434 MCMC Fitting
Iv(0) Initial values of infectious mosquitoes 20 MCMC Fitting
δ Reduction rate of mosquitoes due to control measures. Time_1 varied MCMC Fitting
βhv Effective contact rate from an infected human to a susceptible mosquito. Dimensionless 0.576 MCMC Fitting
βvh Effective contact rate from an infected mosquito to a susceptible human. Dimensionless 0.426 MCMC Fitting
νh Per capita rate of progression of humans from the exposed state to the infectious state. Time_1 1/5 [13]
νv Per capita rate of progression of mosquitoes from the exposed state to the infectious state. Time_1 1/10 [13]
γh Per capita recovery rate for humans from the infectious state to the recovered state. Time_1 1/6 [13]
μh Per capita death (and emigration) rate for humans. Time_1 1/(70*360) Estimation
μv Density-independent death rate for mosquitoes. Time_1 1/21 [13]
Kv Carrying capacity of mosquitoes. Mosquitoes 28,200 MCMC Fitting
rv Natural growth rate of mosquitoes. Time_1 0.013 MCMC Fitting
A Scale parameter 0.373 MCMC Fitting
  1. -: The parameters were described in the methods section
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