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COVID-19 variants are assigned Greek letters by WHO - May 2021

Tracking SARS-CoV-2 variants W.H.O.

Briefly
Covid Alpha = UK
Covid Beta:= South Africa
Covid Gamma =Brazil
Covid Delta:= India (first)

Variants of concern

WHO labelPango
lineage
GISAID cladeEarliest documented Date of designation
Alpha 
B.1.1.7 

GRY (formerly GR/501Y.V1) 

20I/S:501Y.V1 

United Kingdom,  
Sep-2020 

18-Dec-2020
Beta B.1.351 GH/501Y.V2 20H/S:501Y.V2 South Africa,  
May-2020 
18-Dec-2020
Gamma P.1 GR/501Y.V3 20J/S:501Y.V3 Brazil,  
Nov-2020 
11-Jan-2021
Delta B.1.617.2  G/452R.V3 21A/S:478K India,  
Oct-2020 
VOI: 4-Apr-2021 
VOC: 11-May-2021 

A SARS-CoV-2 variant that meets the definition of a VOI (see below) and, through a comparative assessment, has been demonstrated to be associated with one or more of the following changes at a degree of global public health significance:

  • Increase in transmissibility or detrimental change in COVID-19 epidemiology; or
  • ncrease in virulence or change in clinical disease presentation; or
  • Decrease in effectiveness of public health and social measures or available diagnostics, vaccines, therapeutics


Variants of Interest

WHO labelPango
lineage
GISAID cladeEarliest documented Date of designation
Epsilon  B.1.427/B.1.429  GH/452R.V1 20C/S.452R United States of America,   
Mar-2020 
5-Mar-2021 
Zeta P.2 GR 20B/S.484K Brazil,  
Apr-2020 
17-Mar-2021 
Eta B.1.525 G/484K.V3 20A/S484K Multiple countries, 
Dec-2020 
17-Mar-2021 
Theta P.3 GR 20B/S:265C Philippines,  
Jan-2021 
24-Mar-2021 
Iota B.1.526  GH 20C/S:484K United States of America,  
Nov-2020 
24-Mar-2021 
Kappa B.1.617.1  G/452R.V3 21A/S:154K  India,  
Oct-2020  
4-Apr-2021 

Lambda = Peru (first) - WHO added June 14


In VitaminDWiki

COVID-21 (COVID-19 with mutations) causing increased pregnancy problems in Brazil and India – May 2021
Coronavirus Variant Tracker


Created by admin. Last Modification: Sunday July 11, 2021 03:22:44 GMT-0000 by admin. (Version 8)