A protective mask hangs from a toy castle on a shelf at the home of Italian doctor Cecilia Bartalena, 35, who works in the emergency ward at the Cisanello hospital, in this picture taken by her husband, musician Lorenzo Marianelli. Looking after patients suffering with the coronavirus disease (COVID-19), Bartalena has had to change the way she interacts with her family when she gets home from the hospital - she uses a separate bathroom to her husband and four-year-old daughter, eats meals in a separate area, and sleeps alone in her daughter's bedroom, in Pisa, Italy, March 31, 2020. Picture taken March 31, 2020. Lorenzo Marianelli via REUTERS

Italian doctor Cecilia Bartalena, 35, sits at home with her four-year-old daughter Petra Marianelli and cat Sagoma (who isn't very good at social distancing) as she returns home from a long shift in the emergency ward at the Cisanello hospital, in this picture taken by her husband, musician Lorenzo Marianelli. Looking after patients suffering with coronavirus disease (COVID-19), Bartalena has had to change the way she interacts with her family when she gets home from the hospital - she uses a separate bathroom to her husband and four-year-old daughter, eats meals in a separate area, and sleeps alone in her daughter's bedroom. in Pisa, Italy, March 31 2020. Picture taken March 31, 2020. Lorenzo Marianelli via REUTERS

Italian doctor Cecilia Bartalena, 35, embraces her four-year-old daughter Petra Marianelli, after she returned home from a long shift in the emergency ward at the Cisanello hospital, in this picture taken by her husband, musician Lorenzo Marianelli. Looking after patients suffering with the coronavirus disease (COVID-19), Bartalena has had to change the way she interacts with her family when she gets home from the hospital - she uses a separate bathroom to her husband and four-year-old daughter, eats meals in a separate area, and sleeps alone in her daughter's bedroom. in Pisa, Italy, March 31 2020. Picture taken March 31, 2020. Lorenzo Marianelli via REUTERS

Italian doctor Cecilia Bartalena, 35, rests with her face in her hands as she returns home from a long shift in the emergency ward at the Cisanello hospital, in this picture taken by her husband, musician Lorenzo Marianelli, in Pisa, Italy, March 31 2020. Looking after patients suffering with the coronavirus disease (COVID-19), Bartalena has had to change the way she interacts with her family when she gets home from the hospital - she uses a separate bathroom from her husband and four-year-old daughter, eats meals in a separate area, and sleeps alone in her daughter's bedroom. Picture taken March 31, 2020. Lorenzo Marianelli via REUTERS

Italian doctor Cecilia Bartalena, 35, poses for a photograph wearing a protective mask in her family home in Pisa in this picture taken by her husband Lorenzo Marianelli, 37. Working in the Cisanello hospital's emergency ward looking after patients suffering with the coronavirus disease (COVID-19), Bartalena has had to change the way she interacts with her family when she gets home from the hospital - she eats meals in a separate area, uses a separate bathroom, and sleeps alone in her daughter's bedroom, in Pisa, Italy, April 1, 2020. Picture taken April 1, 2020. Lorenzo Marianelli via REUTERS