A staff member sends samples to a temporary laboratory for nucleic acid testing at the Nanjing Railway Station in Nanjing, capital of east China's Jiangsu Province, July 27, 2021. The nucleic acid test laboratory named Lieying, meaning Falcon, is running around the clock to shorten the waiting time of passengers at the railway station, testing up to 6,000 samples a day. (Xinhua/Ji Chunpeng)
A staff member works in a temporary laboratory for nucleic acid testing at the square of the Nanjing Railway Station in Nanjing, capital of east China's Jiangsu Province, July 27, 2021. The nucleic acid test laboratory named Lieying, meaning Falcon, is running around the clock to shorten the waiting time of passengers at the railway station, testing up to 6,000 samples a day. (Xinhua/Ji Chunpeng)
Staff members work outside a temporary laboratory for nucleic acid testing at the square of the Nanjing Railway Station in Nanjing, capital of east China's Jiangsu Province, July 27, 2021. The nucleic acid test laboratory named Lieying, meaning Falcon, is running around the clock to shorten the waiting time of passengers at the railway station, testing up to 6,000 samples a day. (Xinhua/Ji Chunpeng)
A staff member works in a temporary laboratory for nucleic acid testing at the square of the Nanjing Railway Station in Nanjing, capital of east China's Jiangsu Province, July 27, 2021. The nucleic acid test laboratory named Lieying, meaning Falcon, is running around the clock to shorten the waiting time of passengers at the railway station, testing up to 6,000 samples a day. (Xinhua/Ji Chunpeng)
Staff members work in a temporary laboratory for nucleic acid testing at the Nanjing Railway Station in Nanjing, capital of east China's Jiangsu Province, July 27, 2021. The nucleic acid test laboratory named Lieying, meaning Falcon, is running around the clock to shorten the waiting time of passengers at the railway station, testing up to 6,000 samples a day. (Xinhua/Ji Chunpeng)
A staff member sprays disinfectant on the sample boxes in front of a temporary laboratory for nucleic acid testing at the square of the Nanjing Railway Station in Nanjing, capital of east China's Jiangsu Province, July 27, 2021. The nucleic acid test laboratory named Lieying, meaning Falcon, is running around the clock to shorten the waiting time of passengers at the railway station, testing up to 6,000 samples a day. (Xinhua/Ji Chunpeng)
A staff member works in a temporary laboratory for nucleic acid testing at the square of the Nanjing Railway Station in Nanjing, capital of east China's Jiangsu Province, July 27, 2021. The nucleic acid test laboratory named Lieying, meaning Falcon, is running around the clock to shorten the waiting time of passengers at the railway station, testing up to 6,000 samples a day. (Xinhua/Ji Chunpeng)
A staff member works in a temporary laboratory for nucleic acid testing at the square of the Nanjing Railway Station in Nanjing, capital of east China's Jiangsu Province, July 27, 2021. The nucleic acid test laboratory named Lieying, meaning Falcon, is running around the clock to shorten the waiting time of passengers at the railway station, testing up to 6,000 samples a day. (Xinhua/Ji Chunpeng)
Staff members put on their personal protective equipment in a temporary laboratory for nucleic acid testing at the Nanjing Railway Station in Nanjing, capital of east China's Jiangsu Province, July 27, 2021. The nucleic acid test laboratory named Lieying, meaning Falcon, is running around the clock to shorten the waiting time of passengers at the railway station, testing up to 6,000 samples a day. (Xinhua/Ji Chunpeng)
Staff members work in a temporary laboratory for nucleic acid testing at the square of the Nanjing Railway Station in Nanjing, capital of east China's Jiangsu Province, July 27, 2021. The nucleic acid test laboratory named Lieying, meaning Falcon, is running around the clock to shorten the waiting time of passengers at the railway station, testing up to 6,000 samples a day. (Xinhua/Ji Chunpeng)
Staff members work outside a temporary laboratory for nucleic acid testing at the Nanjing Railway Station in Nanjing, capital of east China's Jiangsu Province, July 27, 2021. The nucleic acid test laboratory named Lieying, meaning Falcon, is running around the clock to shorten the waiting time of passengers at the railway station, testing up to 6,000 samples a day. (Xinhua/Ji Chunpeng)
Staff members change shifts in a cabin next to a temporary laboratory for nucleic acid testing at the square of the Nanjing Railway Station in Nanjing, capital of east China's Jiangsu Province, July 27, 2021. The nucleic acid test laboratory named Lieying, meaning Falcon, is running around the clock to shorten the waiting time of passengers at the railway station, testing up to 6,000 samples a day. (Xinhua/Ji Chunpeng)
