Fig. 3From: Is a tiered restrictions system an effective intervention for COVID-19 control? Results from Portugal, November-December 20203 A. COVID-19 7-day cumulative incidence mean at the beginning of each week (W1-W5) by tier; 3B. COVID-19 7-day growth rate mean at the beginning of each week (W1-W5) by tier. A– weeks used in model 1; B– weeks used in model 2; C– weeks used in the full modelBack to article page