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flu
The flu is a highly contagious viral infection that is easily spread through infected persons and surfaces.
- The influenza virus: The flu is caused by specific influenza viruses that primarily attack the respiratory system (nose, throat, lungs).
- Contagious spread: The flu spreads easily through droplets from infected people coughing, sneezing, or talking. You can also catch it by touching infected surfaces and then touching your eyes, nose, or mouth.
- Virus mutations: Influenza viruses change constantly. This means you can get sick with the flu multiple times, even if you've had it before.
The flu often looks like a bad cold, but symptoms are usually more intense. Common signs of the flu include:
- Fever
- Muscle aches
- Headaches
- Fatigue
- Dry cough
- Vomiting (sometimes)
- Muscle weakness
- Rest and fluids: These help the immune system fight the virus.
- Over-the-counter medications: Manage fever, aches, and coughs.
- Antivirals (sometimes): Doctor might prescribe these to shorten the illness.
- Annual flu shot: The BEST protection. Recommended for all kids 6 months and older. The vaccine helps against the most common virus strains each season.
- Hygiene: Good handwashing habits stop the flu from spreading.
- If someone's sick: Clean frequently touched surfaces and start treatment quickly to limit how long they are contagious.
