Understanding variants

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Understanding variants

Supporting Files Public Domain

Aug. 6, 2021
By National Center for Immunization and Respiratory Diseases (U.S.). Division of Viral Diseases.

File Language:

English

Details

Corporate Authors:

National Center for Immunization and Respiratory Diseases (U.S.). Division of Viral Diseases.
Description:

Updated Aug. 6, 2021

Viruses constantly change through mutation, and new variants of a virus are expected to occur. Sometimes new variants emerge and disappear. Other times, new variants persist. Multiple variants of COVID-19 have emerged in the United States. At this point, the original variant that caused the initial COVID-19 cases in January 2020 is no longer circulating as newer variants have increased.
Subjects:

Betacoronavirus Coronavirus Infections COVID-19 Epidemiological Monitoring Molecular Epidemiology Pneumonia, Viral SARS-CoV-2
Document Type:

Webpage
Collection(s):

Stephen B. Thacker CDC Library
Main Document Checksum:

urn:sha256:3816a0e74ee0c8f0fe900181631a966c18f864b690052b5fb8c8be519c04fae8
Download URL:

https://stacks.cdc.gov/view/cdc/108669/cdc_108669_DS1.pdf
File Type:

[PDF - 453.25 KB ]

understanding-variants.html

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File Language:

English

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