A man wearing a mask stands on a bus next to a sign of safety measures to protect bus drivers during COVID-19 pandemic in Budapest, Hungary, on April 21, 2020. According to official figures, the number of confirmed COVID-19 cases in Hungary stood at 2,098 on Tuesday, with 287 recoveries and 213 fatalities. (Photo by Attila Volgyi/Xinhua)

A woman wearing a face mask looks at books in Budapest, Hungary, on April 21, 2020. According to official figures, the number of confirmed COVID-19 cases in Hungary stood at 2,098 on Tuesday, with 287 recoveries and 213 fatalities. (Photo by Attila Volgyi/Xinhua)

People wearing face masks are seen on a street in Budapest, Hungary, on April 21, 2020. According to official figures, the number of confirmed COVID-19 cases in Hungary stood at 2,098 on Tuesday, with 287 recoveries and 213 fatalities. (Photo by Attila Volgyi/Xinhua)

People wearing face masks are seen on a street in Budapest, Hungary, on April 21, 2020. According to official figures, the number of confirmed COVID-19 cases in Hungary stood at 2,098 on Tuesday, with 287 recoveries and 213 fatalities. (Photo by Attila Volgyi/Xinhua)

A woman wearing a face mask walks on a street in Budapest, Hungary, on April 21, 2020. According to official figures, the number of confirmed COVID-19 cases in Hungary stood at 2,098 on Tuesday, with 287 recoveries and 213 fatalities. (Photo by Attila Volgyi/Xinhua)