Weekly epidemiological update - 25 February 2021

25 February 2021


This special edition is supplementary to the 23 February Weekly Epidemiological Update.

In this edition, we provide working definitions for SARS-CoV-2 variants of interest and variants of concern and the associated actions WHO will take to support Member States, their national public health institutes and reference laboratories, along with the recommended actions Member States should take.

WHO Team
Emergency Response