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. 2023 Oct 13;118:e230069. doi: 10.1590/0074-02760230069

TABLE. Frequency of Omicron lineages in Brazil from November 1, 2022 to March 31, 2023.

Lineage Month of collection
November 2022 December 2022 January 2023 February 2023 March 2023
N % N % N % N % N %
BA.1/BA.1.* 6 0.1% 3 0.1% 4 0.3% 1 0.2% 0%
BA.2/BA.2.* 18 0.2% 7 0.1% 8 0.6% 5 1.1% 1 0.6%
BA.3 1 0.01% 1 0.02% 1 0.1% 0% 0%
BE.9 531 6.9% 431 8.4% 123 8.6% 29 6.5% 0%
BE.10 1024 13.2% 416 8.1% 57 4.0% 5 1.1% 0%
BQ.1/BQ.1.* 4416 57.1% 3685 71.4% 957 66.6% 80 17.9% 4 2.2%
DL.1 1318 17% 242 4.7% 20 1.4% 6 1.3% 0%
Other 295 3.8% 166 3.2% 63 4.4% 14 3.1% 2 1.1%
Other XBB* 123 1.6% 180 3.5% 128 8.9% 140 31.3% 90 50.3%
XBB.1.5 1 0.01% 29 0.6% 77 5.4% 167 37.4% 82 45.8%

*descendants of the Pango lineage.