People wait to be vaccinated with the Cuban Abdala vaccine for COVID-19 outside a doctors' office in Alamar on the outskirts of Havana, Cuba, Friday, May 14, 2021. Cuba has begun to immunize people this week with its own vaccines, Abdala and Soberana 02, the only ones developed by a Latin American country. (AP Photo/Ramon Espinosa)

A woman waits to be vaccinated as a nurse prepares the dose of the Cuban Abdala vaccine for COVID-19 at a doctors' office in Alamar on the outskirts of Havana, Cuba, Friday, May 14, 2021. Cuba has begun to immunize people this week with its own vaccines, Abdala and Soberana 02, the only ones developed by a Latin American country. (AP Photo/Ramon Espinosa)

A man gets a shot of the Cuban Abdala vaccine for COVID-19 Abdala at a doctors' office in Alamar on the outskirts of Havana, Cuba, Friday, May 14, 2021. Cuba has begun to immunize people this week with its own vaccines, Abdala and Soberana 02, the only ones developed by a Latin American country. (AP Photo/Ramon Espinosa)

Medical personnel check on the status of people who were vaccinated with the Cuban Abdala vaccine for COVID-19 at a doctors' office in Alamar on the outskirts of Havana, Cuba, Friday, May 14, 2021. Cuba has begun to immunize people this week with its own vaccines, Abdala and Soberana 02, the only ones developed by a Latin American country. (AP Photo/Ramon Espinosa)

People wait to be vaccinated with the Cuban Abdala vaccine for COVID-19 at a doctors' office, decorated with an image of Fidel Castro and a Cuban flag, in the Alamar neighborhood of Havana, Cuba, Friday, May 14, 2021. Cuba began immunizing people this week with its own vaccines, Abdala and Soberana 02, the only ones developed by a Latin American country. (AP Photo/Ramon Espinosa)