Staff members wearing face masks to help prevent the spread of the coronavirus, prepare at a lottery registration counter in a Grand Central residential building complex in Hong Kong, Tuesday, June 15, 2021. A property developer offered a HK$10.8 million (US$1.4 million) 449 square feet single-room flat as a prize in a lucky draw to boost Hong Kong's COVID-19 vaccination rates. (AP Photo/Kin Cheung)