A man rides a bike on the top of the Primrose Hill, backdropped by the London Eye, in London, Britain on April 11, 2020. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department. (Photos: Xinhua)

A woman walks her dog at the Primrose Hill in London, Britain on April 11, 2020. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department.

People relax on the Primrose Hill in London, Britain on April 11, 2020. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department.

A man with a face mask walks on the top of the Primrose Hill, backdropped by the BT tower and the London Eye in London, Britain on April 11, 2020. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department.

A cleaner works in front of red telephone boxes and a red postbox in London, Britain on April 11, 2020. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department.

A man runs past a red telephone box whilst a woman walks her dog in London, Britain on April 11, 2020. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department.

A man runs in a park in London, Britain on April 11, 2020. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department.

A couple climb up hand in hand to the top of the Primrose Hill in London, Britain on April 11, 2020. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department.

Photo taken on April 11, 2020 shows a rainbow sign in support of the key workers during the COVID-19 outbreak in London, Britain. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department.

A cat rests at the windowsill of a housing property in London, Britain on April 11, 2020. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department.

A message reading "Stay Home" is seen on the BT tower in London, Britain on April 11, 2020. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department.

People take a walk while keeping a social distance at the Primrose Hill in London, Britain on April 11, 2020. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department.

People take a walk at the Primrose Hill in London, Britain on April 11, 2020. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department.

People relax while keeping a social distance on the top of the Primrose Hill in London, Britain on April 11, 2020. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department.

People relax while keeping a social distance on the top of the Primrose Hill in London, Britain on April 11, 2020. The death toll of those hospitalized in Britain who tested positive for the novel coronavirus reached 9,875 as of Friday afternoon, marking a daily increase of 917, the Department of Health and Social Care said Saturday. As of Saturday morning, the number of confirmed cases of COVID-19 in Britain hit 78,991, said the department.