Who Is Most At Risk From the Flu?

The flu (influenza) is a contagious respiratory infection that can affect anyone—but some people are more likely to experience serious complications. These complications can lead to hospital stays or, in rare cases, even death.

At Banner Health, we want to help you stay healthy during flu season. Understanding your risk and how to protect yourself can make a big difference.

High-risk groups for flu complications

Older adults

Adults 65 and older have weaker immune systems, which makes them more likely to get sick and experience severe flu symptoms. They are also more likely to face complications like pneumonia or hospitalization.

Young children

Children under age 5 - especially under 2 - are more vulnerable because their immune systems are still developing. Common flu complications in children include ear infections and dehydration.

Babies under 6 months are at even higher risk but are too young to get the flu vaccine. If the mother was vaccinated during pregnancy, the baby receives some protection during those early months.

Pregnant and postpartum individuals

Pregnancy temporarily changes the immune system, making flu symptoms more severe and potentially increasing risks to both the pregnant person and the baby. Getting a flu shot during pregnancy protects both.

People with chronic health conditions

People with asthma, diabetes, heart disease or weakened immune systems are more likely to get very sick from the flu. It can also worsen their existing conditions. Children and teens on long-term aspirin therapy are also at increased risk.

People in long-term care settings

Nursing homes and other care facilities make it easier for viruses like the flu to spread quickly. Older adults in these settings face higher risks of serious illness.

Common flu-related complications

If you are in a high-risk group, the flu can lead to:

• Pneumonia – A serious lung infection that can make breathing difficult
• Bronchitis – Swelling of the airways that leads to a persistent cough
• Sinus or ear infections – These often develop after the flu
• Dehydration – Caused by fever, vomiting or diarrhea, especially in babies and older adults
• Worsening of chronic conditions, including:
  • Asthma attacks
  • Congestive heart failure
  • Organ failure
  • Inflammation of the heart, brain or muscles

What to do if you're at high risk for the flu

Get your flu shot

Flu vaccination is the most important step to protect yourself. It reduces your risk of getting sick and helps prevent serious complications.

Learn more about flu vaccines.

Call your provider right away

If you think you have the flu and you’re in a high-risk group, contact your health care provider immediately. They may prescribe antiviral medication, which can shorten the illness and reduce the risk of complications - especially if started within 48 hours.

Learn more about antiviral medications for the flu.

Stay well hydrated

Drink plenty of fluids each day. If you feel sick, increase your intake of clear liquids like water, tea or broth to help prevent dehydration.

Monitor your symptoms

If your symptoms worsen, last more than a few days or become hard to manage at home, call your provider. Seek emergency care if you or someone else has:

• Trouble breathing
• Confusion or unresponsiveness
• Severe dehydration

Learn when to seek care for the flu.

Everyday tips to help slow the spread of the flu

In addition to getting vaccinated, you can help protect yourself and others by:

• Washing your hands often with warm water and soap
• Avoiding close contact with people who are sick
• Staying home when you don’t feel well
• Covering your mouth and nose with a tissue or elbow when you cough or sneeze
• Eating nutritious foods, staying active and getting enough rest

Discover more ways to prevent the flu.

Protect yourself this flu season

You can get your flu shot during a visit to any Banner Urgent Care location. Walk in or save your spot online - no appointment required.

Find a Banner Urgent Care near you.