WHO has revised its guidelines for wearing masks in the community COVID-19 treatments and treatment for COVID-19. It is part of a the ongoing review process to evaluate these guidelines and working with guideline development groups comprised of independent, international experts who analyze the most recent evidence available and the evolving health care system.
SOURCE LINK-- https://seetheworldblog01.blogspot.com/2023/01/who-updated-covid-19-guidelines.html