A medical worker collects swab samples from a child who arrived at the Jose Marti International Airport in Havana, Cuba, Nov. 15, 2020. Havana's Jose Marti International Airport resumed operation on Sunday after being closed for more than seven months due to the COVID-19 pandemic.

A medical worker collects swab samples from a child who arrived at the Jose Marti International Airport in Havana, Cuba, Nov. 15, 2020. Havana's Jose Marti International Airport resumed operation on Sunday after being closed for more than seven months due to the COVID-19 pandemic.

A staff member helps passengers checking in at the Jose Marti International Airport in Havana, Cuba, Nov. 15, 2020. Havana's Jose Marti International Airport resumed operation on Sunday after being closed for more than seven months due to the COVID-19 pandemic.

Passengers wearing face masks are seen at the Jose Marti International Airport in Havana, Cuba, Nov. 15, 2020. Havana's Jose Marti International Airport resumed operation on Sunday after being closed for more than seven months due to the COVID-19 pandemic.

A medical worker collects swab samples from a passenger who arrived at the Jose Marti International Airport in Havana, Cuba, Nov. 15, 2020. Havana's Jose Marti International Airport resumed operation on Sunday after being closed for more than seven months due to the COVID-19 pandemic.

A passenger wearing a face mask goes through security check at the Jose Marti International Airport in Havana, Cuba, Nov. 15, 2020. Havana's Jose Marti International Airport resumed operation on Sunday after being closed for more than seven months due to the COVID-19 pandemic.

Passengers keep social distancing at the Jose Marti International Airport in Havana, Cuba, Nov. 15, 2020. Havana's Jose Marti International Airport resumed operation on Sunday after being closed for more than seven months due to the COVID-19 pandemic. (Photos: Xinhua)

Passengers wearing face masks are seen at the Jose Marti International Airport in Havana, Cuba, Nov. 15, 2020. Havana's Jose Marti International Airport resumed operation on Sunday after being closed for more than seven months due to the COVID-19 pandemic.

Passengers go through entry procedures at the Jose Marti International Airport in Havana, Cuba, Nov. 15, 2020. Havana's Jose Marti International Airport resumed operation on Sunday after being closed for more than seven months due to the COVID-19 pandemic.

A medical worker checks temperature of a passenger at the Jose Marti International Airport in Havana, Cuba, Nov. 15, 2020. Havana's Jose Marti International Airport resumed operation on Sunday after being closed for more than seven months due to the COVID-19 pandemic.