Table 1 COVID-19 containment efficiency index.

From: Containment efficiency and control strategies for the corona pandemic costs

Location

\(g_0\)

\(\tau _2\)

CEI

Italy

ITA

1.17

4.4

0.991

Iceland

ISL

1.19

4.0

0.983

Bergamo

ITA

1.20

3.8

0.972

Roma

ITA

1.20

3.8

0.998

Germany

DEU

1.21

3.6

0.995

United States

USA

1.22

3.5

0.994

Spain

ESP

1.23

3.3

0.990

Luxembourg

LUX

1.28

2.8

0.988

Austria

AUT

1.30

2.6

0.997

Israel

ISR

1.30

2.6

0.997

Australia

AUS

1.32

2.5

0.999

South Korea

KOR

1.46

1.8

1.000

  1. For selected countries/ regions, key COVID-19 parameters, as extracted from the respective official case counts. Given is the dimensionless reproduction factor \(g_0\), the doubling time \(\tau _2=\log (2)/\log (g_0)\), in units of \(\tau\), and the containment efficiency index \(\text{ CEI }=\alpha _X/(g_0+\alpha _X)\). Note that \(g_0\) is not the native, but an effective reproduction factor.
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