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  2. SARS-CoV-2 Variant Classifications and Definitions

    SARS-CoV-2 genetic lineages in the United States are routinely monitored through epidemiological investigations, virus genetic sequence-based surveillance, and laboratory studies. On November 30, 2021, the U.S. government SARS-CoV-2 Interagency Group (SIG) classified Omicron as a Variant of Concern (VOC).

  3. Scientific Brief: SARS-CoV-2 Transmission | CDC

    SARS-CoV-2 is transmitted by exposure to infectious respiratory fluids The risk of SARS-CoV-2 infection varies according to the amount of virus to which a person is exposed Transmission of SARS-CoV-2 from inhalation virus in the air farther than six feet from an infectious source can occur Prevention of COVID-19 transmission References

  4. SARS-CoV-2 Testing | COVID-19 Treatment Guidelines

    SARS-CoV-2 reinfection has been reported in people after an initial diagnosis of the infection; therefore, clinicians should consider using a NAAT for those who have recovered from a previous infection and who present with symptoms that are compatible with SARS-CoV-2 infection if there is no alternative diagnosis ( BIII ).

  5. Overview of Testing for SARS-CoV-2, the virus that causes ...

    SARS-CoV-2 testing may be incorporated into a comprehensive approach to reducing transmission that also includes screening for symptoms and contact tracing. When combined, these strategies can identify people infected with SARS-CoV-2 so that actions can be taken to slow and stop the spread of the virus.

  6. SARS-CoV-2 next-generation sequencing runs in SRA View in SRA Coronaviridae family-containing SRA runs Download from SRA Run Selector SARS-CoV-2 protein structures, domains, and sequences available through NCBI Structure View Structure Data SARS-CoV-2 related compounds, substances, pathways, bioassays, and more in PubChem View in PubChem

  7. Definition of SARS-CoV-2 - University of North Carolina at ...

    SARS-CoV-2 The virus that causes a respiratory disease called coronavirus disease 19 (see definition COVID-19). SARS-CoV-2 is part of a larger family of viruses called coronaviruses, including SARS-CoV, which led to an epidemic that affected 26 countries and resulted in more than 8000 cases in 2003. RELATED FAQ:

  8. SARS-CoV-2 Omicron variant - Wikipedia

    SARS-CoV-2 (virus) Cases Deaths Timeline Locations International response Medical response Variants Economic impact and recession Impacts COVID-19 portal v t e Omicron (B.1.1.529) is a variant of SARS-CoV-2 first reported to the World Health Organization (WHO) by the Network for Genomics Surveillance in South Africa on 24 November 2021.

  9. What’s the Difference Between COVID-19 and SARS-CoV-2? A ...

    SARS-CoV-2 stands for “severe acute respiratory syndrome coronavirus 2.” It is the virus that causes the disease COVID-19 in humans. In animals, SARS-CoV-2 also refers to the disease. COVID-19 COVID-19 stands for “coronavirus disease 2019.” COVID-19 is the disease caused by the SARS-CoV-2 virus in humans.

  10. SARS-CoV-2 pathogenesis - PubMed

    The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused a devastating pandemic. Although most people infected with SARS-CoV-2 develop a mild to moderate disease with virus replication restricted mainly to the upper airways, some progress to having a life-threatening pneumonia.

  11. Severe acute respiratory syndrome Coronavirus 2 (SARS-CoV-2) has spread rapidly throughout the world. SARS-CoV-2 is an enveloped, plus-stranded RNA virus with a single-stranded RNA genome of approximately 30,000 nucleotides. The SARS-CoV-2 genome encodes 29 proteins, including 16 nonstructural, 4 st …