Flu Season Is Easing, but Risk Isn’t Over: What Families, Older Adults, and High-Risk Patients Should Do Right Now
CDC says U.S. flu activity is falling but still elevated as of March 27, 2026. This season has brought unusually high hospitalization burden, high pediatric severity, and weaker-than-usual vaccine performance against a drifted H3N2 strain—yet vaccination and early antiviral treatment still matter right now. ([cdc.gov](https://www.cdc.gov/fluview/surveillance/2026-week-11.html))
The practical takeaway is simple: flu season is easing, but it is not over. CDC’s FluView update published on March 27, 2026, said influenza activity was continuing to decrease in most areas of the country, yet it remained elevated nationally. That matters for families who still have not gotten a flu shot, for older adults deciding whether it is still worth getting one, and for anyone at higher risk who may need treatment quickly if symptoms start. ([cdc.gov](https://www.cdc.gov/fluview/surveillance/2026-week-11.html))
Why this still matters in April 2026
CDC’s latest national snapshot, covering the week ending March 21, shows a season that is getting better but is still carrying a heavy toll. The agency says the cumulative influenza-associated hospitalization rate is the third highest seen since the 2010-11 season. Among children younger than 18, the cumulative hospitalization rate is the second highest for that age group in the same period. CDC had also received reports of 123 pediatric flu deaths by that March 27 update, and it classified the pediatric age group as having high severity so far this season. ([cdc.gov](https://www.cdc.gov/fluview/surveillance/2026-week-11.html))
That does not mean every child or adult is in immediate danger, and it should not be used as a fear hook. It does mean people should take late-season flu seriously, especially because flu is still circulating and severe outcomes are still happening while many families may assume the worst is already over. ([cdc.gov](https://www.cdc.gov/fluview/surveillance/2026-week-11.html))
What made the 2025-26 season unusually hard
A big part of the story is which flu viruses dominated. CDC says influenza A(H3N2) has been the most frequently reported influenza virus overall this season. In the vaccine-effectiveness report CDC published in MMWR, 88% of subtyped influenza A-positive specimens were A(H3N2), and most genetically characterized H3N2 samples belonged to subclade K, an antigenically drifted virus that differed from the H3N2 vaccine virus selected for the 2025-26 season. In plain English, the virus that spread most widely was not as close a match to the vaccine as health officials would have wanted. ([cdc.gov](https://www.cdc.gov/fluview/surveillance/2026-week-11.html))
That CDC report is an interim observational study, not a randomized trial. It used a test-negative case-control design across three U.S. vaccine-effectiveness networks, so the estimates can still change as more data come in, and they cannot tell any one person exactly how protected they were. But the findings are still important because they show what happened in the real world during this season’s drifted H3N2 wave. ([cdc.gov](https://www.cdc.gov/mmwr/volumes/75/wr/mm7509a2.htm))
Why this year’s flu shot still mattered
The most misleading takeaway from this season would be that the flu shot “failed.” CDC’s interim estimates found lower-than-usual protection compared with some recent seasons, but still meaningful protection. Among children and adolescents, vaccine effectiveness was 38% to 41% against flu-related outpatient visits and 41% against flu-associated hospitalization. Among adults, vaccine effectiveness was 22% to 34% against outpatient visits and 30% against hospitalization. CDC’s bottom line was clear: vaccination reduced the likelihood of both outpatient visits and hospitalizations, even with a drifted A(H3N2) virus circulating. ([cdc.gov](https://www.cdc.gov/mmwr/volumes/75/wr/mm7509a2.htm))
That is why late vaccination is still worth discussing now. CDC says flu vaccines remain available and that there is still time to get vaccinated this season while flu viruses continue to circulate. For people who have not yet been vaccinated, the goal at this point is not perfect timing. It is reducing the chance of getting seriously sick during the remaining weeks of transmission. ([cdc.gov](https://www.cdc.gov/fluview/surveillance/2026-week-11.html))
What families should do now
If your child has not had a flu shot yet, it may still be worth asking about it now. The American Academy of Pediatrics recommends annual flu vaccination for children 6 months and older, and its 2025-26 influenza policy says antiviral treatment is recommended for children with suspected or confirmed influenza who are hospitalized, have severe or progressive disease, or have underlying conditions that raise their risk of complications. AAP also notes that younger children, especially those under 5 and particularly under 2, are at higher risk of serious flu-related complications. ([aap.org](https://www.aap.org/en/patient-care/influenza/))
If your child gets sick, do not wait for things to become dramatic before calling. Flu symptoms can include fever, cough, sore throat, body aches, headache, and fatigue. Children who develop trouble breathing, signs of dehydration, or worsening symptoms need prompt medical attention. ([cdc.gov](https://www.cdc.gov/flu/signs-symptoms/index.html?utm_source=openai))
What older adults and high-risk patients should do now
Older adults, pregnant people, young children, and people with chronic conditions or weakened immune systems should be especially cautious right now. CDC recommends prompt antiviral treatment for people with suspected or confirmed flu who are hospitalized, are very sick, or are at increased risk of serious complications. Antiviral drugs work best when started within 1 to 2 days after symptoms begin, although treatment can still help later in some hospitalized or higher-risk patients. ([cdc.gov](https://www.cdc.gov/flu/treatment/antiviral-drugs.html))
For adults 65 and older, CDC’s Advisory Committee on Immunization Practices says a high-dose, recombinant, or adjuvanted flu vaccine is preferred when available. If none of those is available, CDC says any other age-appropriate flu vaccine should be used rather than skipping vaccination. That means older adults who are still unvaccinated should not assume it is “too late” and should not hold out indefinitely for one exact product if flu is still spreading in their area. ([cdc.gov](https://www.cdc.gov/flu/hcp/acip/index.html))
People at higher risk include adults 65 and older, pregnant people, children younger than 5, and people with conditions such as asthma, chronic lung disease, diabetes, heart disease, or weakened immune systems. If someone in one of those groups develops flu symptoms, calling a clinician promptly can matter more this season because antiviral treatment is one of the clearest ways to lower the chance of severe illness when vaccine protection is not as strong as usual. ([cdc.gov](https://www.cdc.gov/flu/treatment/antiviral-drugs.html))
What health officials are already changing for next season
Federal officials are already responding to what they learned this year, but that should be seen as context, not a promise. FDA says its vaccine advisory committee met on March 12, 2026, to review U.S. and global surveillance data, antigenic data, and serologic responses to the 2025-26 vaccines before recommending strains for the 2026-27 U.S. vaccine. That shows the mismatch seen this season is being taken seriously. It does not mean next season is predictable or guaranteed to be better. ([fda.gov](https://www.fda.gov/vaccines-blood-biologics/vaccines/influenza-vaccine-composition-2026-2027-us-influenza-season))
What this means for readers
If you have not gotten a flu shot yet, it may still help while flu remains elevated. If you are 65 or older, ask about a high-dose, recombinant, or adjuvanted vaccine. If you or your child are in a higher-risk group and flu symptoms start, do not just wait it out—ask promptly about antiviral treatment. And if you are caring for a child, pay close attention to worsening symptoms, because CDC says this season has been unusually severe for kids. ([cdc.gov](https://www.cdc.gov/fluview/surveillance/2026-week-11.html))
Sources
- CDC FluView Week 11
- CDC MMWR VE estimates
- CDC antiviral treatment
- CDC ACIP flu recommendations
- AAP Pediatrics policy statement
- AAP Influenza resource page
- FDA 2026-2027 strain selection
- AP flu season context
- IDSA immunocompromised guidance
- Cdc
- Cdc
This article is for general informational purposes only and is not medical advice. Research findings can be early, limited, or subject to change as new evidence emerges. For personal guidance, diagnosis, or treatment, consult a licensed clinician. For current outbreak or public health guidance, follow your local health department, the CDC, or another relevant public health authority.
