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 …

2024年9月18日 · Understanding the stages of the flu—including the signs and symptoms that are likely to develop—can help you determine if you are recovering as you should. It can also help you figure out if you are still contagious and able to infect others. Day 0 …

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.

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. cough. sore throat. runny or stuffy nose. muscle or body aches. headaches. fatigue (tiredness)

The flu is a common respiratory illness you get from the influenza virus. Symptoms often include fever, head and body aches, coughing and a stuffy or runny nose. You’re at risk for serious complications if you have an underlying health condition or are pregnant.

2024年12月18日 · Flu is a viral infection affecting the nose, throat, and lungs, mostly during the winter months. It is far worse than an ordinary cold, which usually causes a runny nose, sneezing, watery eyes...

2024年3月15日 · Influenza, commonly known as the " flu," is an extremely contagious respiratory illness caused by influenza A or B viruses. Flu appears most frequently in winter and early spring. The flu virus...

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29日 · Influenza, aka the flu, is a highly contagious virus that infects your nose, throat, and sometimes your lungs. You can get sick by being around someone with the flu when they cough, sneeze, or...

2025年3月7日 · The flu (influenza) is a serious virus that causes millions of illnesses each year. Symptoms include sneezing, muscle aches, and a fever. Most cases of the flu are mild enough to treat yourself...