Posted on Tuesday, September 22, 2026 6:31 pm
Flu, RSV, and COVID are all circulating right now, and while they can feel almost identical, they don't all spread the same way. Knowing how each one travels — through droplets, through the air, or through contact with surfaces — is the key to protecting yourself and the people around you. Here's a clear breakdown of how these viruses move and the simple precautions that actually make a difference.
The Three Ways Flu, RSV, and COVID Spread
Most respiratory viruses travel one of three ways — and flu, RSV, and COVID each lean on different routes. Understanding the difference is what makes prevention feel less like guesswork.
Droplet spread
When someone coughs, sneezes, or even talks, they release small droplets of fluid that can land in the nose, mouth, or eyes of anyone close by. These droplets are relatively heavy, so they usually fall within a few feet. Flu and RSV both spread readily this way, which is why close contact with a sick person is one of the easiest ways to catch them.
Airborne spread
Some viruses also travel in much smaller particles that can linger in the air and drift farther than droplets — especially indoors where ventilation is poor. COVID is the one most associated with airborne spread, which is part of why it moves so easily through crowded, enclosed spaces.
Contact spread
Viruses can also survive on surfaces — doorknobs, phones, shopping carts, toys — and spread when you touch that surface and then touch your face. RSV is especially known for this route and can live on hard surfaces for hours. That's why frequent hand-washing matters so much during respiratory season.
Simple Precautions That Actually Work
The good news is that the steps that stop one of these viruses tend to stop all three. Match your habits to the way each virus spreads and you cover your bases:
Against droplet spread: Keep some distance from anyone who's obviously sick, cover coughs and sneezes, and consider a mask in close quarters when illness is going around.
Against airborne spread: Improve airflow where you can — open a window, run a fan, or step outside for gatherings. A well-fitting mask helps in crowded indoor spaces.
Against contact spread: Wash your hands often with soap and water, especially before eating or touching your face. Wipe down high-touch surfaces at home and work, and keep hands away from your eyes, nose, and mouth.
A few other basics go a long way: stay home when you're sick, keep up with the recommended vaccines for flu, COVID, and — where appropriate — RSV, and don't push through symptoms in shared spaces.
How to Tell Flu, RSV, and COVID Apart
Because the early symptoms overlap so much — sore throat, congestion, cough, fatigue, fever — it's genuinely hard to know which virus you have without testing. Flu often comes on fast with body aches and fever. RSV tends to hit the youngest and oldest hardest and can settle into the chest. COVID can look like almost anything, from a mild cold to something more serious. The only reliable way to know for sure is a test.
NOTE: NEEDS APPROVAL — provider quote (placeholder attribution)
“By the time someone's sitting in front of us, flu, RSV, and COVID can look nearly identical. That's exactly why testing matters — it changes how we treat you, and it helps you protect the people at home. If you're not sure what you've got, that's a good reason to come in, not to wait it out.”
— Dr. David Caltrider, HealthCARE Express
When to Come In to HealthCARE Express
Most cases of flu, RSV, and COVID can be managed at home with rest and fluids — but some need a closer look. Come in if you have a high or persistent fever, trouble breathing, symptoms that keep getting worse instead of better, or if you're caring for an infant, an older adult, or someone with a chronic condition. If you're in the Texarkana, Longview, or Shreveport area, you can walk into any HealthCARE Express location and be tested the same day — no appointment needed. For everywhere else, you can find your nearest clinic below.
What to expect at your visit
Walk in, check in at the front desk, and let us know your symptoms. We can test for flu, RSV, and COVID on-site, evaluate how you're doing, and send you home with a clear plan — whether that's treatment, supportive care, or guidance on keeping the rest of your household healthy. Most visits take about 30 to 45 minutes.
Walk into any HealthCARE Express location — no appointment needed. [Find your nearest clinic →]