(CNN) — Turkey and Montenegro are now among the highest-risk destinations for travelers, according to the US Centers for Disease Control and Prevention’s regularly revised travel advisories list.
Travel should be avoided to locations carrying the “Level 4: Covid-19 very high” notice, according to CDC guidance. Anyone who must travel should be fully vaccinated first, the agency advises.
The CDC’s evolving list of travel notices ranges from Level 1 (“low”) to Level 4 (“very high”).
Destinations that fall into the “Covid-19 very high” Level 4 category have had more than 500 cases per 100,000 residents in the past 28 days, according to CDC parameters. The Level 3 category applies to destinations that have had between 100 and 500 cases per 100,000 residents in the past 28 days.
Turkey and Montenegro were previously ranked at “Level 3: Covid-19 high.”
The Caribbean island of Dominica was listed before the update as a low-risk, Level 1 destination.
New ‘Level 3’ destinations
Five destinations on Monday moved to the “Level 3: Covid-19 high” category: Chile, Mozambique and Uruguay (all moving down from Level 4), as well as Kosovo and North Macedonia (both moving up from Level 2).
CDC guidance for Level 3 destinations urges unvaccinated travelers to avoid nonessential travel to those locations.
“Fully vaccinated travelers are less likely to get and spread Covid-19. However, international travel poses additional risks, and even fully vaccinated travelers might be at increased risk for getting and possibly spreading some Covid-19 variants,” the agency said.
The city of Bodrum, on the Aegean Sea in southwestern Turkey, is pictured on June 27, 2021. (Photo by Bulent Kilic/AFP via Getty Images)