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. 2022 Apr 4;22:331. doi: 10.1186/s12879-022-07317-2

Fig. 2.

Fig. 2

SHapley Additive exPlanations (SHAP) main effect value of each nonpharmaceutical intervention (NPI) at different intensity levels. For each NPI, the first time, its SHAP main effect value exceeded zero indicates the time at which the NPI with the corresponding intensity level started to suppress influenza transmission. At intensities below this level, the NPI did not produce effects. The inflection point in the plot corresponds to the intensity of the NPI that approximately reached the maximal effect