Alvaro, 40, a caregiver, pushes the wheelchair of his client Jose Maria Casais, 69, who is using a portable oxygen concentrator backpack with a battery to breathe, as they cross the road in Barcelona, Spain, December 9, 2022. REUTERS/Nacho Doce
Alvaro, 40, a caregiver, pushes the wheelchair of his client Jose Maria Casais, 69, who is using a portable oxygen concentrator backpack with a battery to breathe, as they cross the road in Barcelona, Spain, December 9, 2022. REUTERS/Nacho Doce