Three popular tourism destinations in the Caribbean — Barbados, Trinidad and Tobago, and the U.S. Virgin Islands — announced they have reduced coronavirus-related travel restrictions. On the island of Barbados, government officials dropped a three-day quarantine period for unvaccinated visitors who test negative at the airport upon arrival, according to Travel Weekly. All unvaccinated travelers must show proof of a negative COVID-19 test taken within three days before arrival. Vaccinated travelers no longer have to take a coronavirus test before visiting Barbados. In Trinidad and Tobago, healt…