Influenza (flu) - Symptoms and causes - Mayo Clinic
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. But sometimes, influenza and its … 展开
The viruses that cause flu spread at high levels during certain times of the year in the Northern and Southern hemispheres. These are called flu seasons. In North America, flu season usually runs between October and May. Symptoms of the flu such as a sore throat and … 展开
If you're young and healthy, the flu usually isn't serious. Although you may feel awful while you have it, the flu usually goes away in a week or two with no lasting effects. But people at high … 展开
流行性感冒 - 维基百科，自由的百科全书
Influenza (Flu) | Influenza (Flu) | CDC - Centers for …
Learn about the current flu season and find resources related to flu surveillance and past seasons.
Flu (Influenza): Causes, Symptoms, Types & Treatment
2022年10月11日 · The flu is one of the most common infectious diseases. Every flu season, about 20 to 40 million people in the U.S. catch the flu. What is the difference between the flu and the common cold? The flu and the common …
Influenza - Wikipedia
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. These symptoms begin one to four (typically two) days after exposure to the virus and last for about two to eight days. Diarrhea and vomiting can occur, particularly in …
Wikipedia · CC-BY-SA 许可下的文字Flu map: These states are now at CDC’s …
2 天之前 · The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike upward in most states, according to the …
Signs and Symptoms of Flu | Influenza (Flu) | CDC
2024年8月26日 · Flu can cause mild to severe illness, and at times can lead to death. Flu symptoms usually come on suddenly. People who have flu often feel some or all of these signs and symptoms: fever* or feeling feverish/chills. …
About Influenza | Influenza (Flu) | CDC - Centers for …
2024年8月13日 · Flu can cause mild to severe illness, and at times can lead to death. Flu symptoms usually come on suddenly. People who have flu often feel some or all of these signs and symptoms: fever* or feeling feverish/chills. …
Influenza (seasonal) - World Health Organization (WHO)
Seasonal influenza (the flu) is an acute respiratory infection caused by influenza viruses. It is common in all parts of the world. Most people recover without treatment. Influenza spreads easily between people when they cough or …
Do I Have The Flu? Flu Symptoms, …
2023年8月28日 · Asking if you have the flu? This WebMD slideshow helps you understand the flu virus, its symptoms, types of influenza, and flu treatments.
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