LONDON, UNITED KINGDOM - MARCH 31: People paint red hearts representing the 150,000 victims who have died of the coronavirus (Covid-19), on the National Covid Memorial Wall, opposite the Houses of Parliament in London, United Kingdom on March 31, 2021. ( Hasan Esen - Anadolu Agency )

LONDON, UNITED KINGDOM - MARCH 31: A view of the National Covid Memorial Wall created by people painting red hearts representing the 150,000 victims who have died of the coronavirus (Covid-19), opposite the Houses of Parliament in London, United Kingdom on March 31, 2021. ( Hasan Esen - Anadolu Agency )

LONDON, UNITED KINGDOM - MARCH 31: People paint red hearts representing the 150,000 victims who have died of the coronavirus (Covid-19), on the National Covid Memorial Wall, opposite the Houses of Parliament in London, United Kingdom on March 31, 2021. ( Hasan Esen - Anadolu Agency )

LONDON, UNITED KINGDOM - MARCH 31: People paint red hearts representing the 150,000 victims who have died of the coronavirus (Covid-19), on the National Covid Memorial Wall, opposite the Houses of Parliament in London, United Kingdom on March 31, 2021. ( Hasan Esen - Anadolu Agency )

LONDON, UNITED KINGDOM - MARCH 31: People paint red hearts representing the 150,000 victims who have died of the coronavirus (Covid-19), on the National Covid Memorial Wall, opposite the Houses of Parliament in London, United Kingdom on March 31, 2021. ( Hasan Esen - Anadolu Agency )

LONDON, UNITED KINGDOM - MARCH 31: People paint red hearts representing the 150,000 victims who have died of the coronavirus (Covid-19), on the National Covid Memorial Wall, opposite the Houses of Parliament in London, United Kingdom on March 31, 2021. ( Hasan Esen - Anadolu Agency )

LONDON, UNITED KINGDOM - MARCH 31: A view of the National Covid Memorial Wall created by people painting red hearts representing the 150,000 victims who have died of the coronavirus (Covid-19), opposite the Houses of Parliament in London, United Kingdom on March 31, 2021. ( Hasan Esen - Anadolu Agency )

LONDON, UNITED KINGDOM - MARCH 31: People paint red hearts representing the 150,000 victims who have died of the coronavirus (Covid-19), on the National Covid Memorial Wall, opposite the Houses of Parliament in London, United Kingdom on March 31, 2021. ( Hasan Esen - Anadolu Agency )

LONDON, UNITED KINGDOM - MARCH 31: People paint red hearts representing the 150,000 victims who have died of the coronavirus (Covid-19), on the National Covid Memorial Wall, opposite the Houses of Parliament in London, United Kingdom on March 31, 2021. ( Hasan Esen - Anadolu Agency )

LONDON, UNITED KINGDOM - MARCH 31: A view of the National Covid Memorial Wall created by people painting red hearts representing the 150,000 victims who have died of the coronavirus (Covid-19), opposite the Houses of Parliament in London, United Kingdom on March 31, 2021. ( Hasan Esen - Anadolu Agency )

LONDON, UNITED KINGDOM - MARCH 31: People paint red hearts representing the 150,000 victims who have died of the coronavirus (Covid-19), on the National Covid Memorial Wall, opposite the Houses of Parliament in London, United Kingdom on March 31, 2021. ( Hasan Esen - Anadolu Agency )

LONDON, UNITED KINGDOM - MARCH 31: People paint red hearts representing the 150,000 victims who have died of the coronavirus (Covid-19), on the National Covid Memorial Wall, opposite the Houses of Parliament in London, United Kingdom on March 31, 2021. ( Hasan Esen - Anadolu Agency )

LONDON, UNITED KINGDOM - MARCH 31: People paint red hearts representing the 150,000 victims who have died of the coronavirus (Covid-19), on the National Covid Memorial Wall, opposite the Houses of Parliament in London, United Kingdom on March 31, 2021. ( Hasan Esen - Anadolu Agency )