A night view of the Yellow Crane Tower in Wuhan, Central China's Hubei province, April 7, 2020. The city, the hardest-hit area by the COVID-19 outbreak on the Chinese mainland, reopened on Wednesday after a 76-day lockdown. The Yellow Crane Tower is a landmark historical site in Wuhan.[Photo/Xinhua]

A night view of the Jianghanguan Museum in Wuhan, Central China's Hubei province, April 7, 2020. The city, the hardest-hit area by the COVID-19 outbreak on the Chinese mainland, reopened on Wednesday after a 76-day lockdown. The Jianghanguan Museum is situated on the shore of the beautiful Yangtze River.[Photo/Xinhua]

A night view of the Yellow Crane Tower in Wuhan, Central China's Hubei province, April 7, 2020. The city, the hardest-hit area by the COVID-19 outbreak on the Chinese mainland, reopened on Wednesday after a 76-day lockdown. The Yellow Crane Tower is a landmark historical site in Wuhan.[Photo/Xinhua]

A night view of Wuhan, Central China's Hubei province, April 7, 2020. The city, the hardest-hit area by the COVID-19 outbreak on the Chinese mainland, reopened on Wednesday after a 76-day lockdown.[Photo/Xinhua]

A night view of the Jianghanguan Museum in Wuhan, Central China's Hubei province, April 7, 2020. The city, the hardest-hit area by the COVID-19 outbreak on the Chinese mainland, reopened on Wednesday after a 76-day lockdown. The Jianghanguan Museum is situated on the shore of the beautiful Yangtze River.[Photo/Xinhua]

A night view of the Yellow Crane Tower in Wuhan, Central China's Hubei province, April 7, 2020. The city, the hardest-hit area by the COVID-19 outbreak on the Chinese mainland, reopened on Wednesday after a 76-day lockdown. The Yellow Crane Tower is a landmark historical site in Wuhan.[Photo/Xinhua]

A night view of Wuhan, Central China's Hubei province, April 7, 2020. The city, the hardest-hit area by the COVID-19 outbreak on the Chinese mainland, reopened on Wednesday after a 76-day lockdown.[Photo/Xinhua]