The effectiveness of travel restrictions can vary based on several factors:
- Timing: Early implementation often yields better outcomes. - Compliance: Public adherence to restrictions greatly affects their success. - Scope: Comprehensive restrictions (e.g., including air, sea, and land travel) are usually more effective. - Complementary Measures: Effectiveness increases when combined with other measures like testing and quarantine.
Empirical studies have shown that travel restrictions can delay the introduction of a disease into a community and reduce its spread, although they are not foolproof.
