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Flu Season Strikes Early: What You Need to Know to Stay Safe

USAWednesday, December 17, 2025
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A new flu strain is causing a surge in illnesses earlier than usual, and it's hitting hard.

The Current Situation

This year, the influenza A H3N2, specifically the K variant, is spreading quickly across the globe and in the United States. The Centers for Disease Control and Prevention reported an 8.1% increase in positive flu tests nationwide, with the new strain leading to more cases and hospitalizations, especially from the western states to the Northeast.

Expert Warnings

Experts had warned that this flu season might be worse than usual. The virus has undergone genetic changes, making it more contagious. The Southern Hemisphere saw a rise in this subvariant during their winter, and experts expected the same here as the weather got colder. Australia, for instance, broke its national record for flu cases this year, partly due to vaccine hesitancy.

Symptoms and Treatment

Symptoms to Watch For

  • Fever
  • Muscle aches
  • Cough
  • Headache
  • Exhaustion
  • Stomach issues (vomiting, diarrhea)
  • Ear pain

The only way to be sure you have the flu is to take a test. If you do, your doctor might prescribe antiviral medication to help you recover faster.

Home Treatment

  • Rest
  • Drink plenty of liquids to avoid dehydration
  • Take over-the-counter fever reducers and pain medication like ibuprofen

Seek medical help immediately if you experience severe symptoms like:

  • Chest pain
  • Confusion
  • Severe dizziness
  • Shortness of breath
  • Dehydration

Prevention

The flu shot is still your best bet for preventing severe illness, even though the current vaccine isn't a perfect match for the new strain. It was developed before this variant started spreading. However, getting vaccinated can still protect you from other flu strains and reduce the severity of the illness if you do get sick.

Staying Healthy

  • Practice good hygiene: Wash your hands often.
  • Avoid sharing drinks and food with others during flu season.
  • Consider wearing a mask in crowded places, especially if you're immunocompromised or elderly.

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