The U.S. Centers for Disease Control and Prevention (CDC) added 22 countries to its advisory list against travel on Tuesday. The countries are now listed under the highest warning level, level 4, due to rising cases of the Wuhan coronavirus.

According to a report from Reuters, some of the countries are Israel, Australia, Albania, Argentina, Uruguay, Panama, Qatar, the Bahamas, Bahrain, Bermuda, British Virgin Islands, Turks and Caicos Islands, Suriname, Egypt, Saint Lucia, and Bolivia.

“The level 4 rating now has more than 100 countries as nations struggle to combat the highly contagious omicron variant,” The Hill reported. “The CDC advises that level 4 countries be avoided at all costs and a person be fully vaccinated if they do have to go to them.”