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About CDC. CDC is the nation's leading science-based, data-driven, service organization that protects the public's health. CDC works 24/7 to protect America from health, safety and security threats, both foreign and in the U.S. About CDC. Organization and Mission.
The new guidance brings a unified approach to addressing risks from a range of common respiratory viral illnesses, such as COVID-19, flu, and RSV, which can cause significant health impacts and strain on hospitals and health care workers.
- Overview
- Feeling Sick?
- Resources
Updated Oct. 26, 2022
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People with COVID-19 have had a wide range of symptoms reported – ranging from mild symptoms to severe illness. Symptoms may appear 2-14 days after exposure to the virus. Anyone can have mild to severe symptoms. Possible symptoms include:
•Fever or chills
•Cough
•Shortness of breath or difficulty breathing
When to Seek Emergency Medical Attention
Difference Between Flu and COVID-19 Influenza (Flu) and COVID-19 are both contagious respiratory illnesses, but they are caused by different viruses. COVID-19 is caused by infection with a coronavirus named SARS-CoV-2, and flu is caused by infection with influenza viruses. You cannot tell the difference between flu and COVID-19 by symptoms alone because some of the symptoms are the same. Some PCR tests can differentiate between flu and COVID-19 at the same time. If one of these tests is not available, many testing locations provide flu and COVID-19 tests separately. Talk to a healthcare provider about getting tested for both flu and COVID-19 if you have symptoms. Learn more
More Information
•Understanding Your Risk •Healthcare Workers: Information on COVID-19 •Visit archive.cdc.gov for a historical snapshot of the COVID-19 website, capturing the end of the Federal Public Health Emergency on June 28, 2023. •Visit the dynamic COVID-19 collection to search the COVID-19 website as far back as July 30, 2021. Last Updated Oct. 26, 2022 Source: National Center for Immunization and Respiratory Diseases (NCIRD), Division of Viral Diseases
2024年5月2日 · COVID-19 testing can help you know if you have COVID-19 so you can decide what to do next, like getting treatment to reduce your risk of severe illness and taking steps to lower your chances of spreading the virus to others. When you get tested: Choose the right type of test for your circumstance.
Reinfection with the virus that causes COVID-19 occurs when you are infected, recover, and then get infected again. You can be reinfected multiple times. Reinfections are most often mild, but severe illness can occur. If you are reinfected, you can also spread the virus to others.
2022年9月2日 · Adult BMI Calculator. Español (Spanish) Food Assistance and Food Systems Resources. This calculator provides body mass index (BMI) and the corresponding BMI weight status category for adults 20 years and older. For children and teens, 2 through 19 years, use the BMI Calculator for Children and Teens.
2024年6月11日 · Long COVID is defined as a chronic condition that occurs after SARS-CoV-2 infection and is present for at least 3 months. Long COVID includes a wide range of symptoms or conditions that may improve, worsen, or be ongoing. Anyone can get Long COVID.
