Flu season has started in the U.S. and cases are expected to rise in the coming weeks. The flu is a serious respiratory illness and severe cases can lead to death. Dr. Susan Rehm, an infectious disease expert at Cleveland Clinic, says the best way to prevent the flu is by getting a flu vaccine - and the sooner you get it, the better.
"It takes somewhere between 2 to 4 weeks for the vaccine to be fully effective, that's why it's important to get vaccinated as early as possible during the flu season," she explained.
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Experts say flu viruses spread mainly by airborne droplets from coughing, sneezing or talking. It's also possible to pick up the flu by touching a contaminated surface and then touching your mouth, eyes or nose.
People over 65, young children, pregnant women and people with chronic conditions like asthma, diabetes or heart disease are at higher risk for developing serious complications from the flu. Complications may include bacterial pneumonia, ear infections, sinus infections and dehydration. Flu viruses infect the nose, throat and lungs and symptoms often start suddenly.
"Influenza symptoms, as it begins, include things like severe aches, headaches, fevers, chills, tiredness and fever is a big thing," said Rehm.
The Centers for Disease Control and Prevention recommends that everyone 6 months of age and older get vaccinated against the flu every year. The CDC says you can do other things to help fight off the flu, too.
- Avoid close contact with sick people.
- Avoid touching your eyes, nose and mouth because germs spread this way.
- Wash your hands ofen with soap and water. If that's not available, use an alcohol-based hand rub.
- Clean and disinfect surfaces and objects that may be contaminated with the flu and other germs.
Read more recommendations from the CDC here.