Flu Season 2026: Key Updates and Changing Symptoms

Elevated Flu Activity:: Seasonal influenza activity remains high across the country, and experts expect it to continue for several more weeks. While some indicators have decreased, this may be due to holiday-related changes in healthcare seeking and reporting.

Dominant Virus:: Influenza A(H3N2) viruses are the most frequently reported this season. The CDC estimates that there have been at least 15,000,000 illnesses, 180,000 hospitalizations and 7,400 deaths from the flu so far this season. Source: [CDC FluView Interactive?ref=yanuki.com]

New Variant Symptoms:: A mutated and highly contagious variant known as "subclade K" has brought a change in telltale signs of the virus, experts have said, including higher fevers (lasting up to seven days), coughs, and gastrointestinal issues even in adults.

Vaccination Still Recommended:: Despite the emergence of new variants, health experts recommend getting vaccinated, as the vaccine can still mitigate the severity of the illness. Source: [NBC Chicago?ref=yanuki.com]

Pediatric Impact: Children between the ages of 5 and 17 are most impacted by hospital admissions related to acute respiratory illnesses and the flu. Illinois also reported its first influenza death in a child this season.

Clinical laboratories reported that 24.7% of specimens tested positive for influenza during Week 53. Source: [CDC FluView?ref=yanuki.com]

Public health laboratories reported that influenza A viruses accounted for 97.1% of positive specimens, with A(H3N2) being the dominant subtype.

The percentage of outpatient visits for respiratory illness decreased slightly, but remains above baseline levels nationally and in all HHS regions.

Hospitalization rates remain high, particularly among adults aged 65 and older and children aged 0-4 years. Source: [CDC FluView Interactive?ref=yanuki.com]

Get vaccinated:: It is not too late to get a flu shot, even if you have already had the flu.

Practice good hygiene:: Wash your hands frequently and avoid touching your face.

Stay home if you are sick:: This will help prevent the spread of the virus to others.

Know the warning signs:: Seek medical attention if you experience difficulty breathing, persistent chest pain, or dehydration.

Monitor local health advisories:: Stay informed about flu activity in your area and follow recommendations from local health officials.

Q: What are the symptoms of the new flu variant?

Q: Is the flu vaccine effective against the new variant?

Q: How long is the flu contagious?

The 2025-2026 flu season is active, and a new variant is changing the typical symptoms associated with the flu.

Vaccination remains the most effective tool to prevent severe illness from the flu.

Staying informed and practicing good hygiene can help protect you and your community.