Lockdown reduced infections, especially if adopted early
Cumulated Covid-19 cases per thousand people
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
Countries tightening with few cases
Countries tightening with many cases
Countries tightening with many cases
Countries tightening with few cases