The flu is a contagious respiratory illness caused by influenza viruses. It can cause mild to severe illness, and at times can lead to death. According to the CDC, the best way to prevent the flu is to get a flu vaccine each fall.
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Annual hospitalizations for the flu now average approximately 200,000, up from 114,000 just two decades ago. And there were 36,000 deaths last year, compared to 20,000 annually just 20 years ago, said officials at the conference, which was sponsored by the National Foundation for Infectious Diseases and the National Coalition for Adult Immunization.
Some people are at high risk for serious flu complications, such as healthcare and social workers, teachers, people 50 years old and older, travelers, students, young children, and people with certain health conditions.
Symptoms & Complications of Flu
Symptoms of flu include: fever (usually high), headache, extreme tiredness, dry cough, sore throat, runny or stuffy nose, and muscle aches.
Gastro-intestinal symptoms, such as nausea, vomiting, and diarrhea, are much more common among children than adults.
Some of the complications caused by flu include bacterial pneumonia, dehydration, and worsening of chronic medical conditions, such as congestive heart failure, asthma, or diabetes.
Children may get sinus problems and ear infections.
How Flu Spreads
The flu spreads in respiratory droplets caused by coughing and sneezing. It usually spreads from person to person, though occasionally a person may become infected by touching something with virus on it and then touching their mouth or nose.
Adults may be able to infect others beginning 1 day before getting symptoms and up to 7 days after getting sick. That means that you can give someone the flu before you know you�re sick as well as while you are sick.
People 50 to 64 Years Old
Nearly one-third of people 50 to 64 years of age in the United States have one or more medical condition that place them at increased risk for serious complications from the flu. These include chronic disorders in their pulmonary or cardiovascular systems, including asthma; those with diabetes, anemia, and heart, kidney and liver disease, or AIDS. For that reason, since 2000, it has been recommended that all people 50 to 64 years of age are protected against the flu.
People Who Can Give the Flu to Others at High Risk for Complications
To help prevent spreading the flu to those at high risk for complications from the illness, the following people should get vaccinated: