COVID-19 Variant Proportions: 5/13/2003

Details

• Corporate Authors:
  Centers for Disease Control and Prevention (U.S.)
• Description:
  SARS-CoV-2, the virus that causes COVID-19, is constantly changing and accumulating mutations in its genetic code over time. New variants of SARS-CoV-2 are expected to continue to emerge. Some variants will emerge and disappear, while others will emerge and continue to spread and may replace previous variants.
  
  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. Virus genetic sequences are analyzed and classified as a particular lineage. The proportions of SARS-CoV-2 variants in a population are calculated nationally, by HHS region, and by jurisdiction. The sequences analyzed through CDC's national genomic sequencing and bioinformatics efforts fuel the comprehensive and population-based U.S. surveillance system established to identify and monitor the spread of variants.
  
  Rapid virus genomic sequencing data combined with phenotypic data are further used to determine whether COVID-19 tests, treatments, and vaccines authorized or approved for use in the United States will work against emerging variants
  
  Monitoring Variant Proportions -- Nowcast -- More About Variants -- About These Data.
  
  
• Subjects:
  COVID-19 SARS-CoV-2
• Series:
  CDC COVID Data Tracker
• Document Type:
  Text
• Place as Subject:
  United States
• Collection(s):
  Stephen B. Thacker CDC Library
• Main Document Checksum:
  urn:sha-512:bbd7f610fcf3ce5f53f5d857dfcf19ed57c03975ed3a21966191e626ec99f304a924903698c09c1276e54a8a902c1164483ff50ea3a25d3b334533cd04af34c8
• Download URL:
  https://stacks.cdc.gov/view/cdc/128377/cdc_128377_DS1.pdf
• File Type:
  [PDF - 525.37 KB ]