2025年1月28日 · Flu, also called influenza, is an infection of the nose, throat and lungs, which are part of the respiratory system. The flu is caused by a virus. Influenza viruses are different from the "stomach flu" viruses that cause diarrhea and vomiting. Most people with the flu …

What is the flu (influenza)? The flu is an illness you get from the influenza virus. It causes symptoms like head and body aches, sore throat, fever and respiratory symptoms, which can be severe. Flu is most common in winter months, when many people can get sick at once (an epidemic). Cleveland Clinic is a non-profit academic medical center.

Influenza (flu) is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and lungs. Learn about flu, including symptoms, prevention methods, and treatment options.

2023年8月28日 · It's a super-contagious virus that can make you feel miserable. Doctors call it influenza. Its symptoms are usually more serious than the sneezes and stuffy nose that you tend to get from a...

Influenza, commonly known as the flu, is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever , runny nose , sore throat , muscle pain , headache , coughing , and fatigue .

2 天之前 · Surge in flu cases reported across U.S. as cases peak for a second time 02:46. For a second time this season, the flu is surging, with at least 41 states reporting high or very high levels of the ...

2024年8月26日 · Learn about identifying flu symptoms, how the diagnosis works, common complications, and more.

2024年8月13日 · Flu is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs. It can cause mild to severe illness, and at times can lead to death. The best way to prevent flu is by getting a flu vaccine each year. Flu can cause mild to severe illness, and at times can lead to death.

5 天之前 · It's flu season, but not all influenza is the same. If you're feeling sick, it helps to know the difference between flu A and flu B symptoms, experts say.

1 天前 · Flu is still spiking across the United States as the country faces a winter wave of seasonal illnesses. The surge in influenza cases and hospitalizations is straining hospitals, leading to ...