CDC Raises and Lowers Travel Alert Levels for Several Countries

Image: Coast of the Caribean Sea, Bridgetown, Barbados. (photo via Siempreverde22 / iStock / Getty Images Plus)
Image: Coast of the Caribean Sea, Bridgetown, Barbados. (photo via Siempreverde22 / iStock / Getty Images Plus)
Laurie Baratti
by Laurie Baratti
Last updated: 7:37 PM ET, Mon October 4, 2021

The U.S. Centers for Disease Control and Prevention (CDC) has just updated its travel advisories levels for several countries around the globe, essentially offering warnings about where COVID-19 risk is currently the highest.

This week, the list of destinations designated Level 4 grew once again, with Armenia, Austria, Barbados, Croatia, Latvia and New Caledonia being bumped up to the agency's highest travel alert level due to "Very High" incidence of COVID-19 infection. Americans are warned that they should "avoid travel" to countries in this category.

Other nations' alert statuses were downgraded from Level 4 to Level 3, meaning they've been relabeled as having a "High" incidence of COVID-19 and the CDC's recommendation is to "make sure you are fully vaccinated" before traveling to any of these countries. Argentina, France, Iceland, Lesotho, Morocco, Nepal, Portugal and South Africa were all de-escalated to Level 3 this week.

There are now more than 80 countries on the Level 4 "avoid travel" list, including places that are typically popular among U.S. travelers, such as Jamaica, the Bahamas, St. Kitts and Nevis, Puerto Rico, the, Maldives, Greece, the U.K. and Ireland.

USA Today pointed out that the CDC's travel alerts, like the travel advisories issued by the U.S. State Department, are intended to serve as informed recommendations, not official restrictions. Americans can still decide to visit these countries, subject to any restrictions set by the destination, but do so at their own risk.

Take note that even returning residents attempting to enter the U.S. must provide negative results from a COVID-19 test taken within 72 hours of boarding their flight.

The CDC is actively monitoring health threats around the world on a continual basis. Its four-level system for Travel Health Notices (THNs) reflects the COVID-19 incidence rates or case counts in each country, and advisory levels primarily correspond to each destination's number of new cases and new-case trajectory (whether daily new cases are increasing, decreasing or remaining stable).

The agency will raise a destination's THN level when case counts increase and testing metrics surpass certain thresholds and remain above it for 14 consecutive days. Similarly, the CDC lowers a country's THN level when the incidence rate (or case count) and testing metrics fall below a predetermined threshold and remain so for 28 consecutive days.

Destinations categorized as Level 4 have reported 500 or more new cases per 100,000 people over the preceding 28-day period, while Level 3 countries have seen 100-500 per 100,000 in the past 28 days.

For the latest insights on travel to destinations around the world, check out the guide below:


For the latest travel news, updates and deals, subscribe to the daily TravelPulse newsletter.

Topics From This Article to Explore

More From TravelPulse

Related Videos

Laurie Baratti

Laurie Baratti

Assistant Editor

Laurie Baratti is an Assistant Editor for TravelPulse. She is a San Diego-based journalist whose work has previously appeared in publications like TravelAge West, SPACE, Modern Home + Living, Montage, and Sandals Life magazines. Travel writing has long been her passion, and she is always looking for excuses to explore the world outside of her native California. Laurie is also a lifelong equestrian, a proud pet-parent, and an underground advocate of the Oxford comma.

Grow Your Travel Business With Certified Courses

Travel Agent Academy
Travel Agent Academy
Los Cabos Specialist ProgramSell the magic of Los Cabos: luxury, adventure, and endless sunshine.
Travel Agent Academy
Travel Agent Academy
Majestic Resorts Specialist ProgramDiscover all-inclusive luxury at Majestic Resorts in paradise.
Travel Agent Academy
Travel Agent Academy
Allianz Specialist ProgramProtect every journey with Allianz Partners Travel Insurance.
Travel Agent Academy
Travel Agent Academy
Los Cabos Specialist ProgramSell the magic of Los Cabos: luxury, adventure, and endless sunshine.
Travel Agent Academy
Travel Agent Academy
Majestic Resorts Specialist ProgramDiscover all-inclusive luxury at Majestic Resorts in paradise.
Travel Agent Academy
Travel Agent Academy
Allianz Specialist ProgramProtect every journey with Allianz Partners Travel Insurance.

Don't Miss These Travel Agent Events and Trainings

Watch Now!
I Am Israel: Rediscovering the World's Most Timeless DestinationFriday, September 18, 2026
2:00pm Eastern
From new sites in the Old City of Jerusalem to culinary experiences to spiritual connections, join us...
Upcoming Webinar
MSC Cruises: A Year in Motion — Learn More, $ell MoreMonday, September 21, 2026
2:00pm Eastern
MSC Cruises just wrapped its first-ever Alaska season, and it's only the beginning. Join Erin Douglas...
Upcoming Webinar
Destination Weddings & HoneymoonsTuesday, September 22, 2026
2:00pm Eastern
Join Travel Weekly TravelAge West, and TravelPulse as we showcase romantic hotels and resorts designed...
Watch Now!
I Am Israel: Rediscovering the World's Most Timeless DestinationFriday, September 18, 2026
2:00pm Eastern
From new sites in the Old City of Jerusalem to culinary experiences to spiritual connections, join us...
Upcoming Webinar
MSC Cruises: A Year in Motion — Learn More, $ell MoreMonday, September 21, 2026
2:00pm Eastern
MSC Cruises just wrapped its first-ever Alaska season, and it's only the beginning. Join Erin Douglas...
Upcoming Webinar
Destination Weddings & HoneymoonsTuesday, September 22, 2026
2:00pm Eastern
Join Travel Weekly TravelAge West, and TravelPulse as we showcase romantic hotels and resorts designed...