Pre-Flight Virus Testing Protects Travelers

The U.S. Centers for Disease Control and Prevention (CDC) recently concluded that reducing the number of persons traveling while infected with the SARS-CoV-2 virus could reduce associated transmission in airports, aircraft, and destination communities.

This CDC analysis published on February 24, 203, found post-arrival SARS-CoV-2 test results were 52% less likely to be positive when the predeparture COVID-19 testing requirement was in effect.

This finding was factual even when controlling for other factors, such as incidence in the flight’s country of origin and pool size.

Based on observed, real-world traveler data, these findings support the value of predeparture testing as a tool for reducing SARS-CoV-2 transmission associated with travel and were consistent with estimates from previous modeling studies.

The CDC continues to recommend testing before and after international travel.