If you're unvaccinated and planning to visit Brazil, prepare for a mandatory five-day quarantine upon arrival.

As the omicron coronavirus variant spreads, nations across the globe are implementing new testing measures and travel bans, with some completely closing their borders.

Unvaccinated travelers heading to Brazil will face a new rule: a five-day quarantine at their destination, effective from December 11. A health official mentioned this move aims to deter anti-vaccine tourism to the country.

The enforcement of the quarantine remains uncertain. This regulation was announced shortly after President Jair Bolsonaro, who has previously stated he sees no reason to get vaccinated despite having contracted the virus, voiced his opposition to a vaccine passport.

All individuals traveling to Brazil need to complete a health declaration and provide evidence of a negative RT-PCR test conducted within 72 hours before boarding, or a negative antigen test taken within 24 hours. Children under 12 traveling with an adult are exempt from these requirements, but unvaccinated travelers must quarantine on arrival.

At the conclusion of the five-day quarantine, unvaccinated travelers are required to undergo another RT-PCR or antigen test, as per the U.S. Embassy. If the result is positive, they must adhere to the guidelines set by the Brazilian Ministry of Health. Those who test negative can then freely travel across the country.

Travel plans to Brazil during the holiday season will look different this year. Rio de Janeiro has announced the cancellation of its traditional New Year's Eve festivities due to the emergence of the omicron variant in the country.

According to Johns Hopkins University, nearly 66% of the Brazilian population is fully vaccinated against COVID-19. Brazil has recorded over 22 million cases and more than 616,000 fatalities, making it one of the countries with the highest numbers. The U.S. Centers for Disease Control and Prevention classifies Brazil as "Level 3: High Level of COVID-19" and advises unvaccinated individuals to avoid nonessential travel there.