Emergence of SARS-CoV-2 New Variants and Their Clinical Significance

Table 2

SARS-CoV-2 new variants and its emergence.

Variant	Lineage	First documented samples
Alpha	B.1.1.7	UK (Sep 2020
Beta	B.1.351	South Africa (May 2020)
Gamma	P.1	Brazil (Nov 2020)
Delta	B.1.617.2	India (Oct 2020)
Omicron	B.1.1.529	South Africa (23 Nov 2021)
Epsilon	B.1.427 and B.1.429	USA (March 2020)
Zeta	P.2	Brazil (Apr 2020)
Eta and Iota	B.1.525 and B.1.526	Multiple (Dec 2020)
Theta	P.3	Philippines (Jan 2021)
Kappa	B.1.617.1	USA (Nov 2020)
Lambda	C.37	India (Oct 2020)
Mu	B.1.621	Peru (Aug 2020)