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Fig. 2 | BMC Public Health

Fig. 2

From: Hindsight is 2020 vision: a characterisation of the global response to the COVID-19 pandemic

Fig. 2

Effect of parameters on the response function. a The effect of the slope parameter n. Note, as n increases, the faster f(·)→0. For any n we have f(·)=1/2 (dashed black), at the point U(·)=1 (dotted black). b The effect of weights on the response function for the special case wA=wR=wD=w>0 for constant n=5. Note the point at which f(·)=1/2 corresponds to At+Rt+Dt=1/w. That is, as w increases the lower the number of cases are required to influence the community to reduce the spread

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