The new legalization applies to anyone who has received a full dosage of a COVID-19 vaccine, which means one dose of the Johnson & Johnson vaccine, or two doses of the Pfizer or Moderna vaccines.
The guidance comes on the heels of new research, which found that the Pfizer and Moderna vaccines are highly effective at preventing infections in real-world conditions. According to the data, even a single dose of either vaccine prevents 80 percent of infections, while two doses prevent 90 percent of infections. Scientific research has also proven that vaccines offer significant protection against asymptomatic infections.
It should be noted, however, that all travelers are still required to wear masks on planes and in transportation hubs, regardless of vaccination status.
Travel restrictions may loosen even further as summer approaches, both domestically and abroad, though that will likely depend on the trajectory of COVID-19 cases in the US and around the world. 