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. 2018 Mar 27;2018:2657461. doi: 10.1155/2018/2657461

Table 1.

Description of parameter values used in the model. “Due to lack of relevant data, most of the parameter values are assumed within realistic ranges for a typical scenario in a rural community/society for the purpose of illustration” [44], with most of the parameter values where appreciable per year.

Parameter Description Value/Range Reference
π Recruitment rate (migration and/or birth rate) 100–100000 Assumed
β Effective contact rate   0.88 [28]
θ Loss of immunity 0.04–2 [14, 47]
μ Natural death rate   0.02 [14]
δ Disease-induced mortality 0.05–0.5 [48]
α Rate of progression from C to I 0.1–0.52 [14]
ω Natural recovery rate 0.06–0.2 Assumed
η1 Per capita infection rate by ill individuals 0.2–0.95 Assumed
η Per capita infection rate by Carriers 0.2–0.85 Assumed
u1 Vaccination rate of susceptible individuals against Meningitis [0,1] Assumed
u2 Treatment rate for carriers without natural recovery and ill individuals [0,1] Assumed
σ Effectiveness of vaccination 0.85–1 [2]
γ Effectiveness of Treatment 0.1–0.9 Assumed