Fig. 5From: Evaluating the impact of stay-at-home and quarantine measures on COVID-19 spreadThe combination of \(q_0\) and \(q_1\) that lead to \(R_e=1\) in Wuhan, New York, Milan, and London. The solid lines represent results obtained for \(q_2=0.1\), while the dash lines are the results for \(q_2=0.3\). Other parameters are set as in Tables 1, 2Back to article page