A man wearing a mask walks by a statue also with a mask in Lisbon, Portugal on April 23, 2020. In Portugal, 371 more cases of COVID-19 were registered on Thursday, increasing the country's total number of confirmed cases to 22,353. (Photos: Xinhua)

Statues wearing masks are seen at an empty street in Lisbon, Portugal on April 23, 2020. In Portugal, 371 more cases of COVID-19 were registered on Thursday, increasing the country's total number of confirmed cases to 22,353.

A man wearing a mask walks by a painting of a firefighter dressed in protective gear on a wall in Lisbon, Portugal on April 23, 2020. In Portugal, 371 more cases of COVID-19 were registered on Thursday, increasing the country's total number of confirmed cases to 22,353.