A student wearing a mask as a precaution amid the spread of COVID-19 wait during the official opening ceremony of the school year in Havana, Cuba, Monday, November 15, 2021. After 20 months of strict quarantine rules that included limiting foreign travel to the island, Cuba today reopens to the world. Airports, hotels, businesses and the remaining half of the student population resume activities. (Photo by Ramon Epinosa/AP Photo)
