A woman wearing a face mask walks on the street in Nice, southern France, Aug. 20, 2020. As of Thursday, France recorded 4,771 new coronavirus cases in the past 24 hours, the biggest daily increase since early April. Since the coronavirus outbreak, a total of 229,814 people have caught the respiratory illness, while the number of clusters being investigated had increased by 33 to 266 from Wednesday, the Health Ministry's data showed. (Photos: Xinhua)

People wearing face masks walk on the street in Nice, southern France, Aug. 20, 2020. As of Thursday, France recorded 4,771 new coronavirus cases in the past 24 hours, the biggest daily increase since early April. Since the coronavirus outbreak, a total of 229,814 people have caught the respiratory illness, while the number of clusters being investigated had increased by 33 to 266 from Wednesday, the Health Ministry's data showed.

(200821) -- PARIS, Aug. 21, 2020 (Xinhua) -- A man wearing a face mask walks on the street in Paris, France, Aug. 20, 2020. As of Thursday, France recorded 4,771 new coronavirus cases in the past 24 hours, the biggest daily increase since early April. Since the coronavirus outbreak, a total of 229,814 people have caught the respiratory illness, while the number of clusters being investigated had increased by 33 to 266 from Wednesday, the Health Ministry's data showed.

People wearing face masks walk on the street in Nice, southern France, Aug. 20, 2020. As of Thursday, France recorded 4,771 new coronavirus cases in the past 24 hours, the biggest daily increase since early April. Since the coronavirus outbreak, a total of 229,814 people have caught the respiratory illness, while the number of clusters being investigated had increased by 33 to 266 from Wednesday, the Health Ministry's data showed.

People wearing face masks walk on the street in Nice, southern France, Aug. 20, 2020. As of Thursday, France recorded 4,771 new coronavirus cases in the past 24 hours, the biggest daily increase since early April. Since the coronavirus outbreak, a total of 229,814 people have caught the respiratory illness, while the number of clusters being investigated had increased by 33 to 266 from Wednesday, the Health Ministry's data showed.

A man wearing a face mask walks by mask wearing posters in Nice, southern France, Aug. 20, 2020. As of Thursday, France recorded 4,771 new coronavirus cases in the past 24 hours, the biggest daily increase since early April. Since the coronavirus outbreak, a total of 229,814 people have caught the respiratory illness, while the number of clusters being investigated had increased by 33 to 266 from Wednesday, the Health Ministry's data showed.

People wearing face masks walk on the street in Nice, southern France, Aug. 20, 2020. As of Thursday, France recorded 4,771 new coronavirus cases in the past 24 hours, the biggest daily increase since early April. Since the coronavirus outbreak, a total of 229,814 people have caught the respiratory illness, while the number of clusters being investigated had increased by 33 to 266 from Wednesday, the Health Ministry's data showed.

People wearing face masks walk on the street in Nice, southern France, Aug. 20, 2020. As of Thursday, France recorded 4,771 new coronavirus cases in the past 24 hours, the biggest daily increase since early April. Since the coronavirus outbreak, a total of 229,814 people have caught the respiratory illness, while the number of clusters being investigated had increased by 33 to 266 from Wednesday, the Health Ministry's data showed.

(200821) -- PARIS, Aug. 21, 2020 (Xinhua) -- A cleaner wears a face mask while working at the La Defense business area near Paris, France, Aug. 20, 2020. As of Thursday, France recorded 4,771 new coronavirus cases in the past 24 hours, the biggest daily increase since early April. Since the coronavirus outbreak, a total of 229,814 people have caught the respiratory illness, while the number of clusters being investigated had increased by 33 to 266 from Wednesday, the Health Ministry's data showed.