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  1. Overview of Testing for SARS-CoV-2 | COVID-19 | CDC

    Aug 29, 2024 · COVID-19 Test Monitoring FDA continually monitors the accuracy of COVID-19 tests. Their website provides up-to …

  2. Symptoms of COVID-19 | Covid | CDC

    Mar 10, 2025 · People with COVID-19 have a wide range of symptoms ranging from mild symptoms to severe illness. Symptoms …

  3. Travelers' Health | CDC

    CDC Travelers’ Health Branch provides updated travel information, notices, and vaccine requirements to inform international …

  4. What to Do If You Were Exposed to COVID-19 | CDC

    Learn what to do if you are exposed to COVID-19, including how long to wear a mask, what to do if symptoms develop, and when to …

  5. NHANES Questionnaires, Datasets, and Related Documentation

    Conducted in 2012, the NHANES National Youth Fitness Survey (NNYFS) was a one-time survey to collect data on physical activity …

  6. IIS | Code Sets | CVX | Vaccines | CDC

    HL7 Standard Code Set. Table shows dates both active and inactive vaccines CVX codes to allow transmission of historical …

  7. Review of the shortcomings of CDC’s first COVID-19 test and ...

    Mar 22, 2023 · The Stephen B. Thacker CDC Library offers a diverse and extensive library collection that includes material in all …

  8. Recognizing persons who are at risk for COVID-19 is a critical component of identifying cases and preventing further transmission. …

  9. Isolation and Precautions for People with COVID-19 | CDC

    May 11, 2023 · When to Isolate Regardless of vaccination status, you should isolate from others when you have COVID-19. You …

  10. Coronavirus Disease 2019 (COVID-19) 2025 Case Definition | CDC

    Access the 2025 Coronavirus Disease 2019 (COVID-19) case definition; uniform criteria used to define a disease for public health …