How CDC is responding to SARS-CoV-2 variants globally

CDC’s global activities

Expanding sequencing capacity

Sequencing is a laboratory technique that is used to read the genetic code and identify variants of SARS-CoV-2. CDC is working with more than 20 countries in the Americas, Africa, Asia and Eastern Europe to establish or expand sequencing capacity so that more samples of SARS-CoV-2, including variants, can be identified, characterized, and reported.

Collaborating with partners

CDC supports the global COVID-19 response through collaborations with the World Health Organization (WHO), Ministries of Health, academic and research institutions, and other organizations in order to track the rapidly evolving situation of variants.  Links for additional information on variants can be found below:

Sharing information

It’s important to learn as much as possible about the characteristics of new variants, wherever they are detected.  CDC is providing guidance about field- and laboratory-based studies that help provide critical information about variants.

Supporting the response

Some variants have the ability to spread quickly and the presence of variants is leading to increased numbers of cases in some settings and placing strain on the healthcare systems.  CDC is supporting the response by working to improve access to testing, building capacity for surveillance of variants, and studying SARS-CoV-2 to understand how changes to the virus might affect how it spreads and what happens to people who are infected with it.

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