Sept. 7 (UPI) -- The U.S. Centers for Disease Control and Prevention on Tuesday placed Jamaica, Brunei and Sri Lanka under its most severe travel warning.
The agency on Tuesday designated the COVID-19 situations as "Level 4: Very High" indicating that they have had more than 500 positive cases per 100,000 residents in the past 28 days.
As part of the advisory, the CDC encouraged travelers to these locations ensure they are fully vaccinated and warned that "even fully vaccinated travelers may be at risk for getting and spreading COVID-19 variants."
The CDC also raised its travel advisory for Anguilla, Antigua and Barbuda, Benin, Ghana, Grenada, and the Turks and Caicos Islands to "Level 3: High" and increased Australia's designation from "Level 1: Low" to "Level 2: Moderate."
Conversely, the Netherlands, Malta, Guinea-Bissau and United Arab Emirates were all downgraded from Level 4 to Level 3.
Unvaccinated Americans are encouraged to specifically avoid travel to destinations designated at Level 3.
Broadly, the CDC advises that Americans avoid all international travel until they have been fully vaccinated.
