Medical workers work at Sant'Orsola-Malpighi hospital in Bologna, Italy, on April 9, 2020. The COVID-19 pandemic has claimed 18,279 lives in locked-down Italy, bringing the total number of infections, fatalities and recoveries to 143,626 by Thursday, according to the latest data released by the country's Civil Protection Department. (Photo by Gianni Schicchi/Xinhua)

Medical workers transfer a COVID-19 patient at Sant'Orsola-Malpighi hospital in Bologna, Italy, on April 9, 2020. The COVID-19 pandemic has claimed 18,279 lives in locked-down Italy, bringing the total number of infections, fatalities and recoveries to 143,626 by Thursday, according to the latest data released by the country's Civil Protection Department. (Photo by Gianni Schicchi/Xinhua)

Medical workers work at Sant'Orsola-Malpighi hospital in Bologna, Italy, on April 9, 2020. The COVID-19 pandemic has claimed 18,279 lives in locked-down Italy, bringing the total number of infections, fatalities and recoveries to 143,626 by Thursday, according to the latest data released by the country's Civil Protection Department. (Photo by Gianni Schicchi/Xinhua)

Medical workers work at Sant'Orsola-Malpighi hospital in Bologna, Italy, on April 9, 2020. The COVID-19 pandemic has claimed 18,279 lives in locked-down Italy, bringing the total number of infections, fatalities and recoveries to 143,626 by Thursday, according to the latest data released by the country's Civil Protection Department. (Photo by Gianni Schicchi/Xinhua)