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  2. SARS-CoV-2 Evolution - World Health Organization

    SARS-CoV-2, the virus which causes COVID-19, tends to change more slowly than others such as HIV or influenza viruses. This could in part be explained by the virus’s internal “proofreading mechanism” which can correct “mistakes” when it makes copies of itself. Scientists continue to study this mechanism to better understand how it works.

  3. The pandemic of the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been posing great threats to the world in many aspects. Effective therapeutic and preventive approaches including drugs and vaccines are still unavailable although they are in development. Comprehensive understandings on the life logic of SARS-CoV-2 and ...

  4. SARS-CoV-2 Viral Mutations: Impact on COVID-19 Tests

    The SARS-CoV-2 virus has mutated over time, resulting in genetic variation in the population of circulating viral strains over the course of the COVID-19 pandemic. Molecular, antigen, and serology ...

  5. SARS-CoV-2 Omicron variant - Wikipedia

    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. [12] [13] It was first detected in Botswana and has spread to become the predominant variant in circulation around the world. [14]

  6. Classification of Omicron (B.1.1.529): SARS-CoV-2 Variant of ...

    The TAG-VE was convened on 26 November 2021 to assess the SARS-CoV-2 variant: B.1.1.529. The B.1.1.529 variant was first reported to WHO from South Africa on 24 November 2021. The epidemiological situation in South Africa has been characterized by three distinct peaks in reported cases, the latest of which was predominantly the Delta variant.

  7. SARS-CoV-2 in Wildlife | U.S. Geological Survey

    News. As SARS-CoV-2, the virus that causes COVID-19 in humans, continues to spread globally, questions have emerged about the potential for humans to transmit the virus to North American wildlife, its potential effects on native wildlife populations, and the resultant possibility and consequences of establishing a persistent wildlife reservoir.

  8. Interpreting SARS-CoV-2 Diagnostic Tests: Common Questions ...

    SARS-CoV-2 is the novel coronavirus that causes COVID-19. It can be transmitted from infected individuals who never develop symptoms (asymptomatic), just before the onset of symptoms ...

  9. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant of concern belonging to the Pango lineage B.1.1.529, known as the Omicron variant, has spread rapidly worldwide (1,2). Several reports describe high infectivity and transmissibility of Omicron ( 3 , 4 ).

  10. Wastewater Surveillance for SARS-CoV-2 Variants | FDA

    Studies have shown that SARS-CoV-2 (COVID-19) variants of concern from wastewater can be identified 1-2 weeks prior to being detected in clinical samples from the same area, making wastewater ...

  11. List N Tool: COVID-19 Disinfectants | US EPA

    EPA expects all products on this list to be effective against SARS-CoV-2 (COVID-19) when used according to the label directions, regardless of what is shown in this column. A product's effectiveness can change depending on how you use it, and some pathogens are more difficult to kill than others.