As flu season gets underway, cases are beginning to pick up across the country. The U.S. Centers for Disease Control and Prevention (CDC) reports that flu activity is higher than typically observed at this time of year, according to its latest weekly flu report, published November 6, 2026.
An early start to the season does not necessarily mean a more severe one. But it’s a reminder that flu can spread in the weeks ahead and that taking steps to protect yourself matters, especially for people at higher risk of complications.
What do the latest numbers tell us, and what should people do now? Here is what to know about flu activity, vaccination and when to contact a healthcare provider.
What the CDC’s Latest Flu Data Show
The CDC tracks flu through laboratory testing, outpatient visits, emergency department visits, hospital admissions and deaths. In the report for the week ending October 31:
- Testing: 9.1 percent of specimens tested at clinical laboratories were positive for flu, up from the previous week.
- Visits and admissions: Flu-related emergency department visits and hospital admissions are increasing.
- Strain: Influenza A(H1N1)pdm09 is the most common type so far. It made up 97.7 percent of the influenza A viruses that public health laboratories identified by subtype that week.
- Pediatric deaths: The CDC reported two flu-associated deaths in children that occurred this season, bringing the total reported for the 2026–27 season to three.
These numbers are preliminary and are likely to change as more reports come in. The CDC currently rates flu severity as low for children, adults and older adults, based on available data. However, flu can still cause serious illness, including in children.
Does an Early Flu Season Mean a More Severe Season?
Not necessarily. Flu seasons differ in when they start and how serious they become. An early increase in activity does not predict how high cases will rise or how severe the season will be.
The types of flu viruses circulating also matter when assessing how well the vaccine may protect against illness. So far, H1N1 is the predominant strain, and early laboratory testing suggests this season’s vaccine is a good match for the H1N1 viruses analyzed. However, it is too early to know how well the vaccine will protect people overall this season.
H3N2, the dominant strain last flu season that was widely referred to as the “super flu,” continues to be detected this season, although it has not been the predominant strain so far.
What Can You Do to Protect Yourself?
Get vaccinated
The CDC recommends an annual flu vaccine for everyone six months and older. If you have not had yours yet, now is a good time. The vaccine can lower your risk of getting the flu and of serious complications if you do. Protection takes about two weeks to build.
An mRNA flu vaccine is now available as another option for some adults. In August 2026, the U.S. Food and Drug Administration approved Moderna’s mRNA flu vaccine called mFLUSIVA, for adults 50 and older. The vaccine uses messenger RNA (mRNA) to deliver genetic instructions to help the body recognize flu viruses and build an immune response. Adults interested in this option can ask their healthcare provider or pharmacist whether it is appropriate for them.
Take everyday precautions
In addition to getting vaccinated, a few everyday habits can help reduce your risk of catching or spreading the flu:
- Wash your hands frequently with soap and water.
- Avoid touching your eyes, nose and mouth.
- Stay home when you are sick to avoid spreading the virus to others.
- Cover coughs and sneezes with a tissue or your elbow.
- Consider wearing a mask in crowded indoor spaces, especially when around people at higher risk of flu complications.
When antiviral medicines may be recommended
Prescription antiviral medicines can treat the flu and may help shorten illness and reduce the risk of complications. They work best when started as early as possible, ideally within 48 hours of the first symptoms. Treatment may still help later, especially for people who are hospitalized or at higher risk of serious illness.
If you develop flu symptoms and are at higher risk of complications, contact your healthcare provider promptly to ask whether antiviral treatment is appropriate.
Why Flu Prevention Matters for Older Adults
Adults 65 and older are at higher risk of serious flu complications. During the week ending October 31, they had the highest flu hospital admission rate of any age group: 7.9 per 100,000 people, according to the CDC.
Vaccination is especially important in this age group. Older adults may be eligible for a higher-dose or adjuvanted flu vaccine, which is designed to create a stronger immune response. Ask your provider which options are available.
Flu is one of several vaccines recommended as people age. Staying up to date on these vaccines can help reduce the risk of serious illness and complications.
When Should You Contact a Healthcare Provider?
Call your healthcare provider promptly if you develop flu symptoms and are at higher risk for complications. This includes:
- Young children
- Adults 65 and older
- Pregnant people
- People with chronic conditions such as asthma, heart disease, diabetes or a weakened immune system
Flu, COVID-19 and RSV can cause similar symptoms, so testing may be needed to tell them apart. Your provider can help determine whether testing or treatment is appropriate.
Seek emergency care right away for:
- Difficulty breathing or shortness of breath
- Chest pain or pressure
- Confusion
- Signs of dehydration, such as dizziness or very little urination
Take Steps Now to Prepare for Flu Season
Flu activity is rising, but there is still time to prepare. Vaccination and early treatment can help lower the risk of serious illness. If you have not had your flu shot, talk with your primary care provider or pharmacist about getting vaccinated.
