Limit Travel to Fight Coronavirus? The Pros and Cons

The U.S. plan to restrict travel from Europe — adding to various curbs by more than 50 other countries — has fueled a debate about the tradeoffs of tightening borders and halting travel in response to the Covid-19 pandemic. Health officials have tended to dismiss restrictions on the movement of people as ineffective in stopping the spread of disease, and such measures, inside countries and between them, carry social and economic costs. However, constraints on movement can help slow the spread