Quantifying the risk of spillover reduction programs for human health
Fig 6
The temporal dynamics of infection before (years 200–400) and after (years 401–600) an 87.5% drop in the force of spillover for a case with slowly waning immunity.
Parameters were identical to those used in Fig 4 except that immunity lasts, on average, only as long as the expected human lifespan (ω = 1/60). As in Fig 4, each panel shows the output from ten replicate simulation runs, with each line showing a ten year rolling average of the value for each individual simulation run. Panel A shows the percentage of the human population with active infection, Panel B depicts the average age at which individuals are infected, Panel C reports the burden of disease, , and Panel D shows the average human lifespan. Parameters were: α = 0.0167, μ0 = 1.0, b = 500, δ = 1/60, v = 365/7, γ = 365/14.