The CDC lowered its travel warning levels for multiple Caribbean countries this week, continuing a trend that has occurred over the past few weeks, as COVID-19 cases have diminished around the globe.

The government's watchdog health agency continues to caution Americans against traveling to many popular European destinations, using its four-tier COVID-19 risk assessment model.

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89 world nations are still on the CDC's highest risk-level list. The countries that are currently rated :Level 2: COVID-19 Moderate, 48 fall under:Level 1: COVID-19 Low, and others that haven't supplied sufficient data for assessment are simply.

St. Kitts and Nevis and St.Vincent and the Grenadines were both upgraded to the CDC's lowest warning category. Bangladesh, Haiti, Myanmar, the Philippines and Saudi Arabia were recategorized under Level 1 outside of the Caribbean.

To be considered for the lowest-risk designation, a county must have reported fewer than 50 new COVID-19 cases in the last four weeks. The CDC still recommends travelers make sure they are fully protected before traveling to Level 1 destinations.

Even if you are up to date with your vaccine, you may still be at risk for getting and spreading the disease.

Coronavirus sign at airport.
Coronavirus sign at an airport. (photo via Animaflora / iStock / Getty Images Plus)

Some countries will benefit from being in lower-risk categories this week, but others are still at Level 4. Italy, France, Germany, Greece, Spain, Ireland and the United Kingdom are some of Europe's most sought-after vacation spots. 500 new cases are recorded per 100,000 residents in countries that have been issued a Level 4 advisory.

The CDC's warnings may not deter American travelers since they are on the rise and several European nations have recently loosened their entry restrictions. In recent weeks, the U.K., Ireland, Iceland, Norway, Denmark and Sweden have all removed their travel restrictions. France and the Netherlands have removed pre-arrival testing requirements for foreign visitors.