Getting vaccinated is still the best way to protect yourself from severe disease and slow the spread of COVID UK, remember your settings and improve government services.
 
 

– COVID Information – U.S. Embassy & Consulate in Vietnam

 
Most airlines also require their passengers to take a PCR test before allowing them to board the plane in order to ensure the safety of their. When do I need to get a test to travel to the US? Entry and Exit Requirements · Are U.S. citizens permitted to enter? [Yes] · Is a negative COVID test (PCR and/or serology) required for entry? [No] · Are health.