"The virus is rampant. We’re still in a pandemic. There’s a lot of complacency at the individual level, and more concerning to me is that at the government level.

"Using masks for respiratory pathogens that transmit through the air is a no-brainer—plus vaccination, plus distancing, plus improving ventilation."

We don’t know everything about this virus. Even in year five, there’s still a lot of research that needs to be done."

- Dr. Maria Van Kerkhove, WHO

https://www.scientificamerican.com/article/rampant-covid-poses-new-challenges-in-the-fifth-year-of-the-pandemic/