TOPSHOT - Pedestrians wear face masks as they walk on a pavement in the Central district of Hong Kong on July 16, 2020, as the city experiences another spike in COVID-19 coronavirus cases. - Hong Kong reimposed tough social distancing measures on July 15 -- shuttering many businesses and making facemasks on public transport mandatory -- after a spike in coronavirus cases threatens to undo months of success against the disease. (Photo by Anthony WALLACE / AFP)