The Spanish Royal Family attend the solemn ceremony to pay tribute to the victims of the coronavirus at the Royal Palace in Madrid, Spain, July 16, 2020. Spain paid homage to the approximately 28,500 people who have lost their lives in the coronavirus pandemic in a solemn ceremony held at the Royal Palace here on Thursday. (Photos: Xinhua)

Spanish Prime Minister Pedro Sanchez presents flowers during the solemn ceremony to pay tribute to the victims of the coronavirus at the Royal Palace in Madrid, Spain, July 16, 2020. Spain paid homage to the approximately 28,500 people who have lost their lives in the coronavirus pandemic in a solemn ceremony held at the Royal Palace here on Thursday.

Spanish Prime Minister Pedro Sanchez attends the solemn ceremony to pay tribute to the victims of the coronavirus at the Royal Palace in Madrid, Spain, July 16, 2020. Spain paid homage to the approximately 28,500 people who have lost their lives in the coronavirus pandemic in a solemn ceremony held at the Royal Palace here on Thursday. (Spanish Royal House/Handout via Xinhua)

Photo shows the general view of the solemn ceremony to pay tribute to the victims of the coronavirus at the Royal Palace in Madrid, Spain, July 16, 2020. Spain paid homage to the approximately 28,500 people who have lost their lives in the coronavirus pandemic in a solemn ceremony held at the Royal Palace here on Thursday.

Aroa Lopez, a nurse from Vall d'Hebron University Hospital in Barcelona, delivers a speech during the solemn ceremony to pay tribute to the victims of the coronavirus at the Royal Palace in Madrid, Spain, July 16, 2020. Spain paid homage to the approximately 28,500 people who have lost their lives in the coronavirus pandemic in a solemn ceremony held at the Royal Palace here on Thursday.

Photo shows the general view of the solemn ceremony to pay tribute to the victims of the coronavirus at the Royal Palace in Madrid, Spain, July 16, 2020. Spain paid homage to the approximately 28,500 people who have lost their lives in the coronavirus pandemic in a solemn ceremony held at the Royal Palace here on Thursday.

The King Felipe VI of Spain delivers a speech during the solemn ceremony to pay tribute to the victims of the coronavirus at the Royal Palace in Madrid, Spain, July 16, 2020. Spain paid homage to the approximately 28,500 people who have lost their lives in the coronavirus pandemic in a solemn ceremony held at the Royal Palace here on Thursday.

The Spanish Royal Family attend the solemn ceremony to pay tribute to the victims of the coronavirus at the Royal Palace in Madrid, Spain, July 16, 2020. Spain paid homage to the approximately 28,500 people who have lost their lives in the coronavirus pandemic in a solemn ceremony held at the Royal Palace here on Thursday.

Photo shows the general view of the solemn ceremony to pay tribute to the victims of the coronavirus at the Royal Palace in Madrid, Spain, July 16, 2020. Spain paid homage to the approximately 28,500 people who have lost their lives in the coronavirus pandemic in a solemn ceremony held at the Royal Palace here on Thursday.

Photo shows the general view of the solemn ceremony to pay tribute to the victims of the coronavirus at the Royal Palace in Madrid, Spain, July 16, 2020. Spain paid homage to the approximately 28,500 people who have lost their lives in the coronavirus pandemic in a solemn ceremony held at the Royal Palace here on Thursday.