Datasets:

HHS-Official
/

sars-cov-2-variant-proportions

usa_or_hhsregion stringclasses 11 values	week_ending stringdate 2021-01-02 00:00:00 2025-04-26 00:00:00	variant stringclasses 131 values	share float64 0 1	share_hi float64 0 1 ⌀	share_lo float64 0 1 ⌀	nchs_or_count_flag float64 0 1 ⌀	modeltype stringclasses 2 values	time_interval stringclasses 2 values	published_date stringdate 2021-05-04 00:00:00 2025-04-25 00:00:00
USA	2025-02-15 00:00:00	MC.10.1	0.056759	0.117387	0.025182	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	XEQ	0.024777	0.044867	0.013207	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	XEC.4	0.026392	0.043164	0.015793	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	MC.19	0.006936	0.013375	0.003465	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	MC.28.1	0.022445	0.076218	0.004937	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	LB.1	0.000829	0.001776	0.000366	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	KS.1	0.001304	0.003924	0.000366	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	KP.1.1.3	0.000459	0.000917	0.000221	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	KP.2.3	0.000378	0.000681	0.000205	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	LP.8.1	0.318386	0.396005	0.249372	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	XEC	0.360535	0.411653	0.31232	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	LF.7	0.031812	0.044395	0.022606	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	KP.3	0.007731	0.01131	0.005243	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	KP.3.1.1	0.074739	0.095926	0.057816	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	LB.1.3.1	0.023644	0.033725	0.016433	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	BA.2.86	0.003007	0.004944	0.0018	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	MC.1	0.028199	0.037244	0.021245	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	XEK	0.010527	0.017338	0.006278	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-02-15 00:00:00	Other	0.00114	0.001945	0.000656	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	MC.10.1	0.049152	0.115371	0.018464	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	XEQ	0.023577	0.045304	0.011724	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	XEC.4	0.026617	0.046863	0.014646	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	MC.19	0.005153	0.011211	0.00223	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	MC.28.1	0.031854	0.122421	0.005335	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	LB.1	0.000389	0.000926	0.000151	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	KS.1	0.000814	0.00281	0.000185	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	KP.1.1.3	0.000223	0.00049	0.000095	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	KP.2.3	0.000159	0.000303	0.00008	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	LP.8.1	0.419495	0.54245	0.305301	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	XEC	0.305432	0.376979	0.241905	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	LF.7	0.027082	0.040283	0.017984	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	KP.3	0.004502	0.006902	0.002907	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	KP.3.1.1	0.05519	0.086368	0.034439	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	LB.1.3.1	0.019143	0.029192	0.012393	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	BA.2.86	0.002079	0.003594	0.001178	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	MC.1	0.020598	0.03047	0.013776	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	XEK	0.008039	0.014783	0.00424	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2025-03-01 00:00:00	Other	0.000502	0.000939	0.000261	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	MC.10.1	0.039889	0.07016	0.021859	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	XEQ	0.00882	0.023902	0.002847	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	XEC.4	0.05704	0.155896	0.016779	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	MC.19	0.009709	0.034135	0.002085	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	MC.28.1	0.020289	0.032113	0.01261	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	LB.1	0.000869	0.002536	0.000256	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	KS.1	0.001344	0.003339	0.000493	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	KP.1.1.3	0.00044	0.000976	0.000186	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	KP.2.3	0.00025	0.000468	0.00013	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	LP.8.1	0.332101	0.413272	0.259485	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	XEC	0.318646	0.356125	0.283331	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	LF.7	0.048107	0.081369	0.027512	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	KP.3	0.007094	0.010731	0.004643	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	KP.3.1.1	0.076697	0.110006	0.052553	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	LB.1.3.1	0.038821	0.049373	0.030399	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	BA.2.86	0.002685	0.005184	0.001342	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	MC.1	0.027233	0.039104	0.018784	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	XEK	0.008766	0.017384	0.004232	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-02-15 00:00:00	Other	0.001202	0.002137	0.000661	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	MC.10.1	0.03543	0.071717	0.016412	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	XEQ	0.008491	0.024207	0.00255	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	XEC.4	0.056369	0.163031	0.015086	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	MC.19	0.006964	0.026995	0.001266	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	MC.28.1	0.025339	0.044157	0.014115	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	LB.1	0.000402	0.001295	0.000102	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	KS.1	0.000825	0.002293	0.00026	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	KP.1.1.3	0.000209	0.000488	0.000083	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	KP.2.3	0.000102	0.0002	0.000051	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	LP.8.1	0.437512	0.551227	0.329697	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	XEC	0.26401	0.313054	0.220051	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	LF.7	0.040389	0.072426	0.02163	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	KP.3	0.004066	0.006261	0.002613	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	KP.3.1.1	0.061281	0.111954	0.031772	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	LB.1.3.1	0.030529	0.039356	0.023584	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	BA.2.86	0.001811	0.003549	0.00089	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	MC.1	0.019086	0.029836	0.012027	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	XEK	0.006665	0.014023	0.003002	null	smoothed	biweekly	2025-02-28 00:00:00
2	2025-03-01 00:00:00	Other	0.00052	0.000988	0.000265	null	smoothed	biweekly	2025-02-28 00:00:00
USA	2024-08-31 00:00:00	KP.2.3	0.144803	0.159529	0.13121	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	KP.1.1.3	0.024278	0.03226	0.018181	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	JN.1	0.004039	0.005668	0.002863	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	LP.1	0.023576	0.03277	0.016841	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	JN.1.16.1	0.00879	0.01171	0.006574	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	JN.1.11.1	0.00347	0.005729	0.002068	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	KP.2.15	0.008101	0.012298	0.005281	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	KP.4.1	0.003443	0.006024	0.001924	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	JN.1.7	0.000511	0.000814	0.000317	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	XDV.1	0.000826	0.001686	0.000387	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	JN.1.16	0.000508	0.000835	0.000305	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	KW.1.1	0.000783	0.001393	0.00043	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	EG.5	0.000074	0.000538	0.000002	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	KP.1.2	0.000345	0.000696	0.000164	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	KQ.1	0.000069	0.000178	0.000024	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	XDP	0.000012	0.000041	0.000003	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	BA.2.12.1	0.000035	0.000741	0	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	JN.1.32	0.000009	0.000041	0.000001	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	BQ.1.1	0.000079	0.00057	0.000003	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	HV.1	0.000003	0.000049	0	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	JN.1.8.1	0.000017	0.000042	0.000006	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	EG.5.1.8	0.000081	0.00077	0	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	BA.2.86	0.000015	0.000134	0	null	smoothed	biweekly	2024-09-13 00:00:00
USA	2024-08-31 00:00:00	LB.1	0.135831	0.152602	0.120616	null	smoothed	biweekly	2024-09-13 00:00:00

End of preview. Expand in Data Studio

SARS-CoV-2 Variant Proportions

Description

To identify and track SARS-CoV-2 variants, CDC uses genomic surveillance. CDC's national genomic surveillance system collects SARS-CoV-2 specimens for sequencing through the National SARS-CoV-2 Strain Surveillance (NS3) program, as well as SARS-CoV-2 sequences generated by commercial or academic laboratories contracted by CDC and state or local public health laboratories. Viral genomic sequences are analyzed and classified as a particular variant. The proportions of variants in a population are estimated nationally, by HHS region, and by jurisdiction. The thousands of sequences analyzed every week through CDC’s national genomic sequencing and bioinformatics efforts fuel this comprehensive and population-based U.S. surveillance system established to identify and monitor the spread of variants.

These data appear on the CDC COVID Data Tracker at the following URL: https://covid.cdc.gov/covid-data-tracker/#variant-proportions

For more information on how these data are generated and used to provide estimates of variant proportions, please see the following references:

Paul P, France AM, Aoki Y, et al. Genomic Surveillance for SARS-CoV-2 Variants Circulating in the United States, December 2020–May 2021. MMWR Morb Mortal Wkly Rep 2021;70:846–850. DOI: http://dx.doi.org/10.15585/mmwr.mm7023a3
Lambrou AS, Shirk P, Steele MK, et al. Genomic Surveillance for SARS-CoV-2 Variants: Predominance of the Delta (B.1.617.2) and Omicron (B.1.1.529) Variants — United States, June 2021–January 2022. MMWR Morb Mortal Wkly Rep 2022;71:206–211. DOI: http://dx.doi.org/10.15585/mmwr.mm7106a4

Dataset Details

Publisher: Centers for Disease Control and Prevention
Geographic Coverage: United States
Last Modified: 2025-04-25
Contact: Clinton Paden (respvirus@cdc.gov)

Source

Original data can be found at: https://data.cdc.gov/d/jr58-6ysp

Usage

You can load this dataset using:

from datasets import load_dataset
 dataset = load_dataset('HHS-Official/sars-cov-2-variant-proportions')

License

This dataset is licensed under https://www.usa.gov/government-works

Downloads last month: 17

Size of downloaded dataset files:

339 MB

Size of the auto-converted Parquet files:

44.2 MB

Number of rows:

3,870,533