Respiratory Virus Activity Remains Elevated in the U.S.: What to Know This Season

Practical takeaway: Respiratory viruses—including influenza (flu), COVID-19, and RSV—continue to circulate across the United States this season, according to the Centers for Disease Control and Prevention (CDC). Most cases are mild, but older adults, infants, pregnant people, and those with chronic health conditions remain at higher risk for severe illness. Vaccination, early testing, and prompt treatment for eligible patients can reduce complications.

What’s happening now

The CDC’s ongoing respiratory virus surveillance shows continued seasonal activity for influenza, COVID-19, and respiratory syncytial virus (RSV) in multiple regions of the country. Respiratory virus levels typically rise in fall and winter and can fluctuate into early spring.

Public health officials emphasize that while hospital capacity has generally been more stable than during earlier pandemic years, outbreaks in schools, long-term care facilities, and community settings still occur. Local health departments may issue additional alerts depending on regional trends.

Common symptoms to watch for

Respiratory viruses share many overlapping symptoms. These may include:

Fever or chills
Cough
Sore throat
Runny or stuffy nose
Muscle or body aches
Fatigue
Headache

COVID-19 may also cause loss of taste or smell, though this is less common with more recent variants. RSV in infants can lead to wheezing, rapid breathing, or difficulty feeding.

Seek urgent medical care for trouble breathing, persistent chest pain, confusion, bluish lips or face, dehydration, or if symptoms rapidly worsen—especially in high-risk individuals.

Who is at higher risk?

According to the CDC and the National Institutes of Health (NIH), people at increased risk for severe illness include:

Adults age 65 and older
Infants, especially under 6 months
Pregnant and recently pregnant individuals
People with chronic conditions such as heart disease, lung disease (including asthma), diabetes, kidney disease, or weakened immune systems
Residents of nursing homes or long-term care facilities

For these groups, early testing and treatment can make a meaningful difference.

Vaccination and prevention updates

The CDC continues to recommend seasonal flu vaccination for everyone 6 months and older, unless medically contraindicated. Updated COVID-19 vaccines are recommended for eligible age groups, particularly those at higher risk for severe disease. For RSV, preventive options now include immunizations for certain infants and maternal vaccination during pregnancy, as well as vaccines for adults 60 and older after shared decision-making with a clinician.

Vaccines do not eliminate all risk, but evidence reviewed by the CDC and FDA shows they reduce the likelihood of severe disease, hospitalization, and death.

Additional prevention steps include:

Staying home when sick
Improving indoor ventilation
Washing hands regularly
Testing when symptomatic, especially before visiting high-risk individuals
Wearing a well-fitting mask in crowded indoor settings during high transmission periods

Testing and treatment: Why timing matters

Antiviral medications for flu work best when started within 48 hours of symptom onset, particularly for high-risk patients. COVID-19 antiviral treatments are also most effective when taken early and require a prescription. RSV treatment is mainly supportive in otherwise healthy adults, but infants and medically vulnerable patients may require closer monitoring.

If you test positive and are at higher risk, contact your healthcare provider promptly to discuss treatment options.

Impact on schools, workplaces, and families

Seasonal surges can lead to increased school absences, staffing shortages, and caregiver strain. Families with medically vulnerable members may need to take extra precautions during periods of higher community spread.

For caregivers, having a plan—knowing where to access testing, how to reach a clinician quickly, and understanding insurance coverage for vaccines and treatments—can reduce stress.

What remains uncertain

Respiratory virus activity can shift quickly based on new variants, community immunity levels, and vaccination uptake. Public health experts monitor these trends through ongoing surveillance. While current tools help reduce severe outcomes, no single strategy eliminates risk entirely.

What this means for readers

For most healthy people, respiratory infections this season will be manageable at home. But vaccination, early testing, and awareness of warning signs remain important—especially for older adults, infants, and people with chronic health conditions. Checking local health department updates and following CDC guidance can help you make informed decisions for your household.

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.

Sources

Centers for Disease Control and Prevention (CDC) – Respiratory Virus Surveillance and Prevention Guidance
National Institutes of Health (NIH) – Respiratory Infections Overview
U.S. Food and Drug Administration (FDA) – Vaccine and Antiviral Safety and Authorization Information