Table 1 Intervention strictness coding (adapted from [3])

School closing

0 - No measures

1 - Recommend closing

2 - Require closing (only some levels or categories, eg just high school, or just public schools)

3 - Require closing all levels

Workplace closing

0 - No measures

1 - Recommend closing (or work from home)

2 - Require closing (or work from home) for some sectors or categories of workers

3 - Require closing (or work from home) all-but-essential workplaces (e.g. grocery stores, doctors)

Cancelled public events

0 - No measures

1 - Recommend cancelling

2 - Require cancelling

Restrictions on gatherings

0 - No restrictions

1 - Restrictions on very large gatherings (the limit is above 1000 people)

2 - Restrictions on gatherings between 100 and 1000 people

3 - Restrictions on gatherings between 10 and 100 people

4 - Restrictions on gatherings of less than 10 people

Closing public transport

0 - No measures

1 - Recommend closing (or significantly reduce volume/route/means of transport available)

2 - Require closing (or prohibit most citizens from using it)

Stay at home requirements

0 - No measures

1 - Recommend not leaving house

2 - Require not leaving house with exceptions for daily exercise, grocery shopping, and ‘essential’ trips

3 - Require not leaving house with minimal exceptions (e.g. allowed to leave only once every few days, or only one person can leave at a time, etc.)

Restrictions on internal movement

0 - No measures

1 - Recommend closing (or significantly reduce volume/route/means of transport)

2 - Require closing (or prohibit most people from using it)

International travel controls

0 - No measures

1 - Screening

2 - Quarantine arrivals from high-risk regions

3 - Ban on high-risk regions

4 - Total border closure

Public information campaigns

0 -No COVID-19 public information campaign

1 - Public officials urging caution about COVID-19

2 - Coordinated public information campaign (e.g. across traditional and social media)