what are the flu symptoms this year
Last updated September 6, 2026.
This year's flu symptoms are the same as always: sudden fever, cough, sore throat, runny or stuffy nose, muscle aches, headache, chills, and fatigue. The virus strains circulating change each season, but the illness they cause looks the same from year to year. Flu tends to hit fast, often within hours, while a cold builds gradually over a day or two. Some people, especially children, also get vomiting or diarrhea, though this is more common in kids than adults. Most healthy adults recover in about a week with rest, fluids, and over-the-counter fever reducers. Symptoms that keep getting worse after day 3 to 5, instead of improving, are worth a closer look.
What to do
- Watch the onset: Sudden symptoms within hours point more toward flu, while gradual symptoms over a day or two point more toward a cold.
- Check your temperature: A fever of 100.4 F or higher along with body aches and fatigue is a common flu pattern, though flu can occur without fever.
- Rest and hydrate: Prioritize sleep and fluids for the first few days since this is when your body fights the infection hardest.
- Ask about antivirals early: Antiviral medication works best when started within 48 hours of symptoms, so contact a clinician quickly if you are high risk.
- Watch for warning signs: Difficulty breathing, chest pain, confusion, or symptoms that improve then suddenly worsen need urgent medical attention.
- Stay home while contagious: Avoid others until at least 24 hours after your fever is gone without fever-reducing medication.
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