The surge of omicron variant cases has now reached tsunami-like proportions in the travel world.The U.S. Centers for Disease Control and Prevention moved a whopping 22 nations into its highest-risk travel category for COVID-19 on Tuesday. By contrast, it moved only two nations to Level 4, or "very high" risk, last week.Related video above: What to do if you test positive for COVID-19 while travelingAdding to the impact: The CDC also moved 22 additional nations to its Level 3 category, which is considered "high" risk for COVID-19.Among the nations moved to Level 4 this week were Argentina and Australia, which have maintained some of the strictest borders controls during most of the pandemic.The CDC places a destination at Level 4 when more than 500 cases per 100,000 residents are registered in the past 28 days. The CDC advises travelers to avoid travel to Level 4 countries.The 22 new destinations, with at least one entry from every continent but Antarctica, at Level 4 are:바카라 게임 웹사이트� Albania바카라 게임 웹사이트� Argentina바카라 게임 웹사이트� Australia바카라 게임 웹사이트� Bahamas바카라 게임 웹사이트� Bahrain바카라 게임 웹사이트� Bermuda바카라 게임 웹사이트� Bolivia바카라 게임 웹사이트� British Virgin Islands바카라 게임 웹사이트� Cape Verde 바카라 게임 웹사이트� Egypt바카라 게임 웹사이트� Grenada 바카라 게임 웹사이트� Guyana바카라 게임 웹사이트� Israel바카라 게임 웹사이트� Panama 바카라 게임 웹사이트� Qatar바카라 게임 웹사이트� Saint Kitts and Nevis바카라 게임 웹사이트� Saint Lucia바카라 게임 웹사이트� São Tomé and Príncipe 바카라 게임 웹사이트� Sint Maarten바카라 게임 웹사이트� Suriname바카라 게임 웹사이트� Turks and Caicos Islands바카라 게임 웹사이트� UruguayThe British Virgin Islands in the Caribbean had the biggest move upward in the list. It was at Level 1 (or "low" risk) last week.Grenada, another Caribbean island, and São Tomé and Príncipe, off the coast of Africa, had been at Level 2 (or "moderate" risk) last week.The other 19 destinations had been at Level 3.Situation in EuropeEurope saw only one new entry at Level 4 this week 바카라 게임 웹사이트� Albania. That's because much of Europe has remained firmly lodged at the CDC's Level 4 for weeks or months now. They include some of the continent's biggest names:바카라 게임 웹사이트� France바카라 게임 웹사이트� Germany바카라 게임 웹사이트� Greece바카라 게임 웹사이트� Iceland바카라 게임 웹사이트� Ireland바카라 게임 웹사이트� Italy바카라 게임 웹사이트� Spain바카라 게임 웹사이트� United KingdomOther popular destinations such as Canada and South Africa are also at Level 4. You can view the CDC's risk levels for global destinations on its travel recommendations page.The CDC does not include the United States in its list of advisories, but it was color-coded at Level 4 on Jan. 18 on the agency's map of travel risk levels.In its broader travel guidance, the CDC has recommended avoiding all international travel until you are fully vaccinated.Level 3 additionsThe Level 3 category 바카라 게임 웹사이트� which applies to destinations that have had between 100 and 500 cases per 100,000 residents in the past 28 days 바카라 게임 웹사이트� also saw a staggering 22 new additions on Tuesday:바카라 게임 웹사이트� Costa Rica바카라 게임 웹사이트� Côte d'Ivoire (Ivory Coast)바카라 게임 웹사이트� Cuba바카라 게임 웹사이트� Fiji바카라 게임 웹사이트� Gabon바카라 게임 웹사이트� Ghana바카라 게임 웹사이트� Jamaica바카라 게임 웹사이트� Kuwait바카라 게임 웹사이트� Madagascar바카라 게임 웹사이트� Malawi바카라 게임 웹사이트� Mauritania바카라 게임 웹사이트� Morocco바카라 게임 웹사이트� Mozambique바카라 게임 웹사이트� Nigeria 바카라 게임 웹사이트� Paraguay바카라 게임 웹사이트� The Philippines바카라 게임 웹사이트� Saba바카라 게임 웹사이트� Saint Barthelemy바카라 게임 웹사이트� Saint Pierre and Miquelon 바카라 게임 웹사이트� Sint Eustatius 바카라 게임 웹사이트� Togo 바카라 게임 웹사이트� UgandaThere were shreds of good news from southeastern African neighbors Malawi and Mozambique, which both moved down from Level 4.The move into Level 3 was bad news for Côte d'Ivoire, Ghana, Morocco and Uganda in Africa, which all moved up two steps from Level 1. The Caribbean islands of Saba, Saint Barthelemy and Sint Eustatius also moved up from Level 1, as did Paraguay in South America and the Philippines in Southeast Asia.Half of the places new to Level 3 this week moved up from Level 2: Costa Rica, Cuba, Gabon, Jamaica, Madagascar, Mauritania, Nigeria, Saint Pierre and Miquelon, Togo, Fiji and Kuwait.Considerations for travelTransmission rates are important to consider when making travel decisions, but there are other factors to weigh as well, according Dr. Leana Wen, a CNN medical analyst, emergency physician and professor of health policy and management at the George Washington University Milken Institute School of Public Health."The transmission rates are one guidepost," Wen said. "Another is what precautions are required and followed in the place that you're going and then the third is what are you planning to do once you're there."Are you planning to visit a lot of attractions and go to indoor bars? That's very different from you're going somewhere where you're planning to lie on the beach all day and not interact with anyone else. That's very different. Those are very different levels of risk."Vaccination is the most significant safety factor for travel since unvaccinated travelers are more likely to become ill and transmit COVID-19 to others, Wen said.She said people should be wearing a high-quality mask 바카라 게임 웹사이트� N95, KN95 or KF94 바카라 게임 웹사이트� anytime they're in crowded indoor settings with people of unknown vaccination status.Before you travel, it's also important to consider what you would do if you end up testing positive away from home, Wen said. Where will you stay and how easy will it be to get a test to return home?