A staff member (R) gives a takeaway pizza to a customer in a restaurant that provides takeaway service only due to the concern of COVID-19 in Dusseldorf, Germany, April 28, 2020. (Photo by Ulrich Hufnagel/Xinhua)

A staff member makes a pizza for customers in a restaurant that provides takeaway service only due to the concern of COVID-19 in Dusseldorf, Germany, April 28, 2020. (Photo by Ulrich Hufnagel/Xinhua)

A customer (R) picks up a takeaway bag in a restaurant that provides takeaway service only due to the concern of COVID-19 in Dusseldorf, Germany, April 28, 2020. (Photo by Ulrich Hufnagel/Xinhua)

A staff member makes French fries in a restaurant that provides takeaway service only due to the concern of COVID-19 in Dusseldorf, Germany, April 28, 2020. (Photo by Ulrich Hufnagel/Xinhua)