A man wearing a face mask loads food and water into his car in Frankfurt, Germany, March 25, 2020. Confirmed cases of COVID-19 in Germany increased by 4,118 within one day to 31,554, announced the Robert Koch Institute (RKI), the federal government agency and research institute responsible for disease control and prevention, on Wednesday. (Photos: Xinhua/Lu Yang)

A woman wearing a face mask walks on a street in Frankfurt, Germany, March 25, 2020.

A woman wearing a scarf walks on a street in Frankfurt, Germany, March 25, 2020.

A man wearing a face mask and gloves leaves a supermarket in Frankfurt, Germany, March 25, 2020.

A man wearing a face mask walks on a street in Frankfurt, Germany, March 25, 2020.