TOM BOLLYKY
Travel bans neither stopped the spread of this novel #coronavirus nor prevented it from becoming a pandemic.
This updates our @ThinkGlobalHlth tracker of #COVID19 cases in countries with travel restrictions on China (red) & countries without such restrictions (blue). Thread 1/
Tom Bollyky on Twitter
88 countries and territories imposed travel restrictions on China due to #COVID19. The median duration was 47 days. Most frequently seen duration has been 48 days 2/
All countries and territories with travel bans and COVID-19 cases are indexed on figure, showing cumulative growth in reported #COVID19 cases since the day that each country imposed its first travel restriction 3/
Figure also shows all the countries with #COVID19 cases that did not impose restrictions on China. These countries are indexed to January 27, when an increasing number of countries began imposing travel restrictions 4/
Figure does not show countries without confirmed COVID-19 cases as of Mar. 18. This includes 18 countries without travel restrictions and 27 countries with travel restrictions. Most of these countries are small & w/limited testing 5/
https://t.co/hMyLiJva24
This @ThinkGlobalhlth travel ban tracker shows when all travel restriction were implemented, their type, our sourcing & current
@who guidelines on #COVID19 trade and travel bans 6/
Travel Restrictions on China due to COVID-19 | Think Global Health
If you have further questions on the analysis, there is a good chance it can be answered by reading the @ThinkGlobalHlth post itself, which identifies sources, methodology used, and limitations 7/
Tracking Coronavirus in Countries With and Without Travel Bans | Think Global Health
Tom Bollyky on Twitter