B.1.525 2021-04-08



Description

International lineage with variants of biological significance E484K, Q677H, F888L and a similar suite of deletions to B.1.1.7.

This webpage is generated using publically available sequence data from GISAID, shared by international sequencing efforts.

Table 1 | Summary of B.1.525 data

Statistic Information
Countries reported 2
Countries with sequences 42
Sequence count 1767
Countries United States of America 376, United Kingdom 310, Germany 280, Denmark 120, Italy 109, Nigeria 97, France 72, Slovenia 43, Norway 41, Netherlands 40, Spain 37, Belgium 36, India 29, Switzerland 19, Ireland 18, Turkey 17, Togo 16, Canada 12, Japan 11, Cote d'Ivoire 10, Austria 10, Poland 9, Australia 8, Bangladesh 7, Ghana 6, Rwanda 5, Finland 4, Portugal 4, Singapore 3, Malaysia 2, Guadeloupe 2, South Korea 2, Luxembourg 2, Jordan 2, Indonesia 1, Sweden 1, Mayotte 1, Cameroon 1, Angola 1, Brazil 1, Thailand 1, Kenya 1
First detected Multiple
Earliest sample date 2020-12-11
Defining SNPs aa:orf1ab:L4715F
aa:S:Q52R
aa:S:E484K
aa:S:Q677H
aa:S:F888L
aa:E:L21F
aa:E:I82T
del:11288:9
del:21765:6
del:28278:3

Figure 1 | Cumulative sequence count over time B.1.525

Bars show the number of new sequences on GISAID over time, binned by epi-week. The line shows the cumulative number of sequences over time.


Figure 2 | Date of earliest_B.1.525 detected

Schematic map showing the date of the first sequence sample date in each country containing the lineage. Darker countries have earlier first sample dates.


Figure 3 | Map of B.1.525 sequence counts

Map showing the logged number of sequences of the variant in each country. Countries with more sequences are shown in darker colours.


Figure 4 | Sequence count per country B.1.525

The number of sequences of the lineage recorded in each country. The height of the bar is the logged number and the numbers above the bar are the raw counts.


Figure 5 | Frequency B.1.525 in sequences produced since first new variant reported per country

The overall frequency of the lineage, defined as the number of sequences assigned the lineage divided by the total number of sequences from that country in the time since the variant was first sequenced in that country.


Figure 6 | B.1.525 count per continent

Seven day rolling average of sequence counts per continent. Please note that recent declines may be due to delay in reporting rather than reflecting a change in the underlying virus population.


Figure 7 | Rolling average B.1.525 frequency per continent

Seven day rolling average of frequency of sequences of the lineage of interest. Frequency is calculated by dividing the number of sequences of the lineage of interest by the total sequences for each continent for each day.



Table 3 | Raw data for figures.

Country Earliest sequence Number of variant sequences Total sequences since first variant sequence
Italy 2021-02-03 109 14029
United States Of America 2020-12-30 376 194218
Finland 2021-01-15 4 1198
Belgium 2021-01-30 36 9550
India 2021-02-20 29 1165
Switzerland 2021-01-22 19 11670
Australia 2021-01-06 8 565
Ivory Coast 2021-02-08 10 34
United Kingdom 2020-12-15 310 226311
Germany 2021-01-25 280 54182
Slovenia 2021-01-26 43 6014
Netherlands 2021-01-27 40 12275
Togo 2021-01-25 16 52
Canada 2021-01-13 12 1307
Bangladesh 2021-03-11 7 217
Ireland 2021-02-02 18 6641
France 2021-01-06 72 14340
Denmark 2021-01-11 120 16095
Nigeria 2020-12-20 97 318
Portugal 2021-03-05 4 640
Malaysia 2021-01-31 2 66
Turkey 2021-02-20 17 1412
Indonesia 2021-01-20 1 389
Spain 2021-01-25 37 8628
Sweden 2021-02-28 1 7513
Norway 2021-01-22 41 3976
Japan 2021-01-15 11 5336
Poland 2021-02-24 9 4054
Guadeloupe 2021-03-03 2 16
Austria 2021-01-28 10 1180
Rwanda 2021-01-22 5 30
Mayotte 2021-01-29 1 89
Ghana 2021-01-06 6 160
Cameroon 2021-02-03 1 5
Singapore 2021-01-31 3 446
Angola 2020-12-11 1 184
South Korea 2021-02-02 2 1686
Luxembourg 2021-02-20 2 1585
Brazil 2021-02-15 1 748
Thailand 2021-03-01 1 65
Jordan 2021-01-07 2 23
Kenya 2021-03-08 1 128

Data source and processing

The data on this page is recent as of 2021-04-08, 07:39 GMT. All SARS-CoV-2 sequences were downloaded from GISAID and genomes were de-duplicated based on GISAID sequence name – note that the publically available metadata may not fully allow us to de-duplicate by patient. Full data processing pipeline found here. The sequences were then assigned lineages with pangolin 2.3.8, pangoLEARN version 2021-04-01.

Acknowledgements

Created by: Áine O'Toole and Verity Hill, Rambaut Group, University of Edinburgh. Flight volume data from Kamran Khan, Isaac Bogoch, Alexander Watts, Oliver Pybus, Moritz Kraemer. Sequences sourced from GISAID, full acknowledgements table here.

We have a pre-print up on virological here describing this web tracker.