Winter Virus Alert! Flu And Norovirus Cases Soar In US—How To Protect Yourself

Flu season has taken over and cases are rising across the US, it's important to take steps to protect yourself and your loved ones. Dr Priya Soni, a pediatric infectious disease specialist at Cedars-Sinai Guerin Children’s Health Center, shares insights on this year’s flu activity, symptoms to watch for, and how to stay healthy.

Flu season typically runs from October to March, peaking in January and February. This year, flu activity is similar to last season, with cases steadily increasing nationwide. The flu often comes on suddenly and can cause:

- High fever

- Chills

- Body aches

- Headache

- Fatigue

- Nasal congestion

- Sore throat

When to See a DoctorMost flu cases can be managed at home with rest, hydration, and over-the-counter medications. However, some symptoms may indicate a more serious illness. Seek medical attention if you experience:

- A fever lasting more than three to five days.

- Worsening cough or shortness of breath.

- Signs of dehydration (dizziness, dry mouth, or infrequent urination).

- A new fever after initial recovery could signal a secondary bacterial infection like pneumonia.

Early medical care is especially important for high-risk people, such as young children, pregnant women, older adults, and those with chronic conditions.

Is It Too Late to Get a Flu Shot?

Not at all! Getting vaccinated is still one of the best ways to protect yourself. According to Dr Soni, the flu vaccine helps reduce the severity of illness and lowers the risk of complications. Even if this year’s vaccine isn’t a perfect match for circulating flu strains, it still provides partial immunity, which can prevent severe illness and hospitalization.

What About Norovirus?Flu season isn’t the only concern—norovirus, often called the "stomach flu," is also spreading. Unlike the flu, norovirus primarily affects the digestive system, causing:

- Nausea

- Vomiting

- Diarrhea

- Stomach cramps

- Occasionally, a low-grade fever

Norovirus spreads easily through contaminated food, water, and surfaces. It’s one of the leading causes of foodborne illness and can spread quickly in crowded places like schools and nursing homes.

How to Stay Healthy

With flu, norovirus, and other viruses circulating, taking preventive measures is key. Dr. Soni recommends the following:

- Wash your hands often – Proper hand hygiene helps prevent the spread of germs.

- Wear a mask – Especially in crowded indoor spaces, masks can help reduce respiratory virus transmission.

- Stay home if you're sick – If you feel unwell, rest and avoid contact with others to prevent spreading illness.

- Get vaccinated – The flu shot can still provide protection and lower the risk of severe complications.

These simple precautionary measures can reduce your chances of getting sick.

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