A close look at China's COVID-19 vaccine production line(1/6)

A staff member of the Beijing Institute of Biological Products demonstrates the bottled COVID-19 inactivated vaccine products in Beijing on Jan. 6, 2021. (Photo: China News Service/Hou Yu)

The filling link on the COVID-19 vaccine production line on Jan.6, 2021. (Photo: China News Service/Hou Yu)

Bottled inactivated vaccines undergoing light inspection on Jan.6, 2021. (Photo: China News Service/Hou Yu)

Pre-filled syringe vaccines on packaging production line, Jan.6, 2021. (Photo: China News Service/Hou Yu)

A staff member checks the pre-filled syringe vaccines on packaging production line on Jan.6, 2021. (Photo: China News Service/Hou Yu)

Bottled inactivated vaccine products on packaging production line, Jan.6, 2021. (Photo: China News Service/Hou Yu)