Jose Maria Casais, 69, who has the flu, rests in his bed before trying to sleep, as he uses a portable oxygen concentrator respiratory machine connected to electricity to breathe, in Barcelona, Spain, December 12, 2022. REUTERS/Nacho Doce
Jose Maria Casais, 69, who has the flu, rests in his bed before trying to sleep, as he uses a portable oxygen concentrator respiratory machine connected to electricity to breathe, in Barcelona, Spain, December 12, 2022. REUTERS/Nacho Doce