SARS-CoV-2 Delta variant share Russia 2023

In the two weeks prior to May 22, 2023, none of the analyzed COVID-19 cases in Russia belonged to the SARS-CoV-2 variant Delta first detected in India. The share of that variant in sequenced cases steadily increased in May and June 2021 and decreased in December 2021 in view of the spread of the Omicron variant.

Share of SARS-CoV-2 sequences that are the Delta variant in the past two weeks in Russia from March 1, 2021 to May 22, 2023

Characteristic	Share of sequences
05/22/23	0%
05/08/23	0%
04/24/23	0%
04/10/23	0%
03/13/23	0%
02/27/23	0%
02/13/23	0%
01/30/23	0%
01/16/23	0%
01/02/23	0%
12/19/22	0%
12/05/22	0%
11/21/22	0%
11/07/22	0%
10/24/22	0%
10/10/22	0%
09/26/22	0%
09/12/22	0%
08/29/22	0%
08/15/22	0%
08/01/22	0%
07/18/22	0%
07/04/22	0%
05/23/22	0%
03/14/22	0%
02/28/22	0.39%
02/14/22	3.25%
01/31/22	15.04%
01/17/22	39.25%
01/03/22	52.96%
12/20/21	79.54%
12/06/21	97.09%
11/22/21	99.84%
11/08/21	100%
10/25/21	100%
10/11/21	100%
09/27/21	100%
09/13/21	100%
08/30/21	98.98%
08/16/21	96.65%
08/02/21	95.51%
07/19/21	98.95%
07/05/21	98.21%
06/21/21	92.1%
06/07/21	76.5%
05/24/21	53.87%
05/10/21	16.43%
04/26/21	3.79%
04/12/21	0.45%
03/29/21	0%
03/15/21	0.53%
03/01/21	0%

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Release date

August 2023

More information

Region

Russia

Survey time period

March 1, 2021 to May 22, 2023

Supplementary notes

The source specified the following information: "This share may not reflect the complete breakdown of cases, since only a fraction of all cases are sequenced. Recently-discovered or actively-monitored variants may be overrepresented, as suspected cases of these variants are likely to be sequenced preferentially or faster than other cases."
Release date is the date of access.

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