Hong Kong opens vaccine drive to children aged 12 and older
Students wearing face masks to prevent the spread of coronavirus, walk down a street in Hong Kong, Thursday, June 10, 2021. Government officials said Thursday that they will expand the vaccination drive to about 240,000 children from 12 to 15 years old starting Friday, joining other countries such as Singapore and the U.S. that have started vaccinating children. (AP Photo/Kin Cheung)

Students wearing face masks to prevent the spread of coronavirus, walk down a street in Hong Kong, Thursday, June 10, 2021. Government officials said Thursday that they will expand the vaccination drive to about 240,000 children from 12 to 15 years old starting Friday, joining other countries such as Singapore and the U.S. that have started vaccinating children. (AP Photo/Kin Cheung)

Jun. 10, 2021 04:30 AM EDT
Students wearing face masks to prevent the spread of the coronavirus, walk across a street in Hong Kong, Thursday, June 10, 2021. Government officials said Thursday that they will expand the vaccination drive to about 240,000 children from 12 to 15 years old starting Friday, joining other countries such as Singapore and the U.S. that have started vaccinating children. (AP Photo/Kin Cheung)

Students wearing face masks to prevent the spread of the coronavirus, walk across a street in Hong Kong, Thursday, June 10, 2021. Government officials said Thursday that they will expand the vaccination drive to about 240,000 children from 12 to 15 years old starting Friday, joining other countries such as Singapore and the U.S. that have started vaccinating children. (AP Photo/Kin Cheung)

Jun. 10, 2021 04:30 AM EDT
Students wearing face masks to prevent the spread of coronavirus, walk across a street in Hong Kong, Thursday, June 10, 2021. Government officials said Thursday that they will expand the vaccination drive to about 240,000 children from 12 to 15 years old starting Friday, joining other countries such as Singapore and the U.S. that have started vaccinating children. (AP Photo/Kin Cheung)

Students wearing face masks to prevent the spread of coronavirus, walk across a street in Hong Kong, Thursday, June 10, 2021. Government officials said Thursday that they will expand the vaccination drive to about 240,000 children from 12 to 15 years old starting Friday, joining other countries such as Singapore and the U.S. that have started vaccinating children. (AP Photo/Kin Cheung)

Jun. 10, 2021 04:31 AM EDT