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 get better on their own.

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...

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.

1 天前 · 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 ...

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.

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

2024年8月30日 · Most people with flu have mild illness and do not need medical care or antiviral drugs. If you get sick with flu symptoms, in most cases, you should stay home and avoid contact with other people except to get medical care.

2024年12月31日 · Seasonal influenza, or flu, is a highly contagious respiratory illness caused by influenza viruses that infect the nose, throat and lungs. The two main types of influenza viruses—types A and B—are the viruses that typically spread in people (human influenza viruses) and cause annual flu outbreaks.

2024年2月28日 · The flu, also called influenza, is a respiratory infection caused by viruses. Each year, millions of Americans get sick with the flu. Sometimes it causes mild illness. But it can also be serious or even deadly, especially for people over 65, newborn babies, and people with certain chronic illnesses. What causes the flu?

2024年7月23日 · The flu (influenza) is a viral respiratory illness that causes fever, chills, runny nose, body aches, and cough. It spreads easily from person to person. The flu can cause moderate to severe symptoms.