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Influenza activity continues to increase in the United States and most of the country is now experiencing high levels of influenza-like-illness (ILI), according to CDC’s latest FluView report. CDC continues to recommend influenza vaccination for people who have not yet been vaccinated this season and antiviral treatment as early as possible for people who get sick and are at high risk of flu complications.
Influenza (also known as the flu) is a contagious respiratory illness caused by flu viruses. It can cause mild to severe illness, and at times can lead to death. The flu is different from a cold. The flu usually comes on suddenly. People who have the flu often feel some or all of these symptoms:
Fever* or feeling feverish/chills
• Sore throat
• Runny or stuffy nose
• Muscle or body aches
• Fatigue (tiredness)
Some people may have vomiting and diarrhea, though this is more common in children than adults.
* It’s important to note that not everyone with flu will have a fever.
Most people who get influenza will recover in a few days to less than two weeks, but some people will develop complications (such as pneumonia) as a result of the flu, some of which can be life-threatening and result in death.
Pneumonia, bronchitis, and sinus and ear infections are three examples of complications from flu. The flu can make chronic health problems worse.
For example, people with asthma may experience asthma attacks while they have the flu, and people with chronic congestive heart failure may have worsening of this condition that is triggered by the flu.