Viruses Going Around Spring 2026: What You Need to Know

Multiple respiratory viruses are circulating at the same time this spring. Here is what is spreading, what symptoms to watch for, and how to find relief.

Published March 15, 2026 • Sources: CDC, UC Davis Health, NY Post, Walk-In Urgent Care

What's Going Around Right Now (Spring 2026)

Spring 2026 is bringing an unusual overlap of respiratory illnesses. Rather than the typical single flu season peak, healthcare providers across the country are seeing multiple viruses circulating at the same time. According to the CDC and urgent care centers nationwide, the following are currently active:

The CDC notes there is frequently a final surge at the end of flu season in March or April, and 2026 is following that pattern. The good news: most cases are mild and resolve within 5–10 days. The challenge is that nasal congestion and sinus pressure can linger well after the initial illness passes.

HMPV: The Virus You Haven't Heard Of (But Should Know About)

Human Metapneumovirus (HMPV) is making headlines in spring 2026, particularly in Northern California where it is described as "pummeling" the region. HMPV is a seasonal respiratory virus — similar to RSV in how it spreads and the symptoms it causes — but far less well-known to the general public.

HMPV was first identified in 2001 but has been infecting humans for at least 50 years. It spreads through respiratory droplets and direct contact, and it typically peaks from winter through spring. Most healthy adults experience mild symptoms, but it can be more serious for young children, older adults, and those with underlying health conditions.

Symptom Comparison: How to Tell These Viruses Apart

Note: The only way to confirm which virus you have is through testing. If symptoms are severe or you are in a high-risk group, consult a healthcare provider.

Why Your Nose Needs Extra Help When You're Sick

Every virus on the list above causes nasal congestion as one of its primary symptoms. When you are sick, your nasal passages become inflamed and fill with mucus as your immune system fights the illness. This congestion is uncomfortable on its own, but it also creates a warm, moist environment where irritants and pathogens can linger.

Over-the-counter decongestants can temporarily shrink swollen nasal tissue, but they do not remove the irritants from your nasal passages. They also carry side effects including elevated heart rate, insomnia, and rebound congestion with extended use.

How Nasal Rinsing Helps During Viral Illness

Nasal irrigation with a saline solution is one of the most effective and safest ways to manage congestion during a respiratory illness. The saline solution physically flushes mucus, irritants, and viral particles from the nasal passages, providing immediate relief and supporting faster recovery.

The ATO Health Sinus Rinse Packets include extra baking soda — a key differentiator that makes the rinse more soothing on inflamed nasal tissue. The baking soda neutralizes the acidity of mucus, reduces irritation, and helps thin thick secretions so they drain more easily. This is especially helpful during viral illness when mucus tends to be thicker and more difficult to clear.