Each winter, respiratory viruses surge across the country. When flu, RSV, and COVID-19 circulate at the same time, it is often referred to as a “tripledemic.”
Understanding the symptoms, treatment options, and prevention strategies can help protect you and your family during respiratory virus season in Brentwood, CA.
What Is the “Tripledemic”?
The term “tripledemic” describes the simultaneous spread of:
- Influenza (Flu)
- RSV (Respiratory Syncytial Virus)
- COVID-19
When these viruses circulate together, hospitals may see increased patient volume — especially among:
- Young children
- Older adults
- Pregnant women
- Individuals with chronic medical conditions
While the term sounds alarming, most infections are mild. However, early recognition and prevention are important.
Symptoms: How to Tell the Difference
Many respiratory viruses share similar symptoms. Testing may be needed to confirm the exact cause.
RSV Symptoms
- Runny nose
- Sneezing
- Cough
- Mild fever
- Wheezing (more common in infants)
RSV can be more serious in babies, premature infants, and children with chronic lung conditions.
Flu Symptoms
- Sudden fever
- Chills
- Body aches
- Fatigue
- Sore throat
- Cough
Flu symptoms often appear quickly and may feel more intense than a common cold.
COVID-19 Symptoms
- Fever or chills
- Cough
- Sore throat
- Fatigue
- Loss of taste or smell
- Body aches
- Congestion or runny nose
Because symptoms overlap, your primary care physician may recommend nasal swab testing to confirm the diagnosis.
Treatment Options
COVID-19 Treatment
If you test positive for COVID-19 and are at higher risk for complications, antiviral medications may be available. Treatment works best when started early — typically within the first few days of symptoms.
Flu Treatment
Antiviral medications for influenza are most effective when started within 48 hours of symptom onset.
RSV Treatment
There is no routine antiviral treatment for RSV in most healthy children or adults. Management is typically supportive, including hydration and monitoring symptoms.
Infants or children with certain risk factors may qualify for preventive antibody treatment — speak with your pediatrician if your child was born prematurely or has chronic lung disease.
How to Reduce Your Risk
Prevention remains the most effective strategy during respiratory virus season.
Stay Up to Date on Vaccinations
- Annual flu vaccine (recommended for most individuals 6 months and older)
- COVID-19 vaccination and boosters as recommended
- RSV immunization options for eligible infants and older adults (as guidelines evolve)
Additional Protective Measures
- Wash hands frequently
- Cover coughs and sneezes
- Stay home when sick
- Consider masks in high-risk indoor settings during peak season
These steps help reduce virus transmission and protect vulnerable family members.
When to See a Doctor
Seek medical care if you experience:
- Difficulty breathing
- Persistent high fever
- Dehydration
- Symptoms that worsen instead of improve
- Symptoms in infants under 3 months old
Early evaluation can help determine whether testing or treatment is appropriate.
Respiratory Illness Care in Brentwood, CA
At Brentwood Primary Care, Dr. Shreya Khatri provides evaluation and treatment for flu, RSV, COVID-19, and other respiratory illnesses.
If you or your child are experiencing symptoms, call (925) 471-4223 to schedule an appointment.
Frequently Asked Questions
What is the difference between RSV, flu, and COVID-19?
All three are respiratory viruses that can cause fever, cough, and congestion. Because symptoms overlap, testing is often needed to confirm the specific infection.
When should I get tested for flu or COVID-19?
If you develop fever, cough, body aches, or respiratory symptoms during peak season — especially if you are at higher risk — contact your healthcare provider to determine whether testing or antiviral treatment is appropriate.









