FIGURE 5.

Model-based prediction of the impact of testing frequency and generation intervals on viral transmission. Each point represents proportion of transmission prevented from periodic testing, calculated by simulating 50,000 infector–infectee pairs for a given value of the mean generation interval (i.e., time between infection and transmission; 5, 6, 7, or 8 days), testing sensitivity (0.5, 0.8, 0.9, or 0.95), and delay from testing to positive result and isolation (0, 1, or 2 days). Dashed, horizontal lines represent the amount of transmission that needs to be prevented to reduce R_eff below 1 when R₀ = 5.5.