Keyphrases
China
100%
Inbound
100%
COVID-19 Risk
100%
International Flights
100%
Imported Case
100%
Risk Index
37%
Air Connectivity
37%
High Risk
25%
Europe
25%
International Air Travel
25%
Hong Kong
12%
Japan
12%
South Korea
12%
Taiwan
12%
Virus
12%
Air Travel
12%
Two-country
12%
Temporal Patterns
12%
Dynamically Adjust
12%
Low Risk
12%
Chinese Provinces
12%
One Country
12%
Chinese Regions
12%
Shandong Province
12%
Travel Restrictions
12%
COVID-19 Pandemic
12%
COVID-19 Spread
12%
Travel Needs
12%
Index Level
12%
Overall Index
12%
Calculated Risk
12%
COVID-19 Data
12%
Route Level
12%
Travel Ban
12%
Responsible Stakeholder
12%
Doing Nothing
12%
Pandemic Conditions
12%
Daily Dynamics
12%
Social Sciences
COVID-19
100%
China
100%
USA
66%
Europe
66%
Chinese
33%
COVID 19 Epidemic
33%
Hong Kong
33%
Japan
33%
South Korea
33%
Travel Restrictions
33%