LONDON, ENGLAND - APRIL 06: A general View of St Thomas's Hospital where Prime Minister Boris Johnson was kept overnight after experiencing persistent symptoms of COVID-19.on April 6th, 2020 in London, United Kingdom. The Coronavirus (COVID-19) pandemic has spread to many countries across the world, claiming over 40,000 lives and infecting hundreds of thousands more. Kate Green / Anadolu Agency/ABACAPRESS.COM