A medial worker put on Personal Protective Equipment (PPE) before entering a negative pressured room for a Covid-19 coronavirus patient on a mechanical ventilator in the Covid-19 designated area of Intensive Care Unit (ICU) at St. Marianna University School of Medicine Yokohama City Seibu Hospital in Yokohama on August 8, 2021. (Photo by Yasuyoshi CHIBA / AFP)