influenzára

Influenza, commonly known as the flu, is a contagious respiratory illness caused by influenza viruses. These viruses infect the nose, throat, and lungs. Influenza can cause mild to severe illness, and at times can lead to death.

The flu is spread by droplets made when people with flu cough, sneeze or talk. These droplets can land in the mouths or noses of people nearby or possibly be inhaled into the lungs. Less often, a person might get flu by touching a surface or object that has flu virus on it and then touching their own mouth, nose, or possibly their eyes.

Symptoms of influenza typically come on suddenly and can include fever, cough, sore throat, runny or stuffy nose, muscle or body aches, headaches, and fatigue. Some people may have vomiting and diarrhea, though this is more common in children than adults.

Most people who get influenza will recover in a few days to less than two weeks. However, some people will develop complications (such as pneumonia) as a result of flu, which can be life-threatening.

Preventive measures include vaccination, which is the most effective way to prevent the flu. Good health habits like covering your cough and washing your hands often can help stop the spread of germs. Antiviral drugs can treat the flu and may prevent serious flu complications.