Fig. 6
From: Controlling emerging zoonoses at the animal-human interface
Impacts of different control measures on the total incidence of a zoonotic infection with R (before control) between 0 and 1 with a varying ratio of high and low spillover rates. Panel a shows how total incidence increases with R for varying ratios of high-to-low zoonotic spillover. Panels b-e illustrate proportional reduction in incidence for controls that would cause 50% reductions in all spillover transmission (b), human-to-human transmission (c), spillover transmission into the high-risk group (d), or jointly high-risk spillover and human-to-human transmission (e). Panels f-h show the proportional reduction in incidence given a reactive strategy that first targets high-risk spillover and then switches to reducing human-to-human transmission after 1, 2, or 3 generations of transmission, respectively. Note that longer delays cause the results to resemble Panel d over increasing ranges of R values, since at low R many transmission chains don’t last multiple generations. The proportion of high-risk individuals in the population was set to 0.10