(FILES) Nurses tend to a Covid-19 patient at the intensive care unit (ICU) of the Delafontaine AP-HP hospital in Saint-Denis, outside Paris, on December 29, 2021. Five years since Covid-19 started upending the world, the virus is still infecting and killing people across the globe -- though at far lower levels than during the height of the pandemic. Here is the current state of the play. (Photo by ALAIN JOCARD / AFP) (Photo by ALAIN JOCARD/AFP via Getty Images)