How Does Influenza (The Flu) Work?

The flu is like a sneaky guest that comes to your body and makes it feel really unwell.

When someone has the flu, germs, tiny little bugs you can’t see, jump from one person to another, usually when they cough or sneeze. These germs are like invisible messengers telling your body, “Hey, I’m here to cause some trouble!”

How the Germs Work Their Magic

Once these germs get inside your body, they start a party in your nose and throat. They multiply really fast, like ants building a big ant hill. This party makes your body feel sick, you might sneeze a lot, or your head might hurt, or maybe you’ll even feel like you’re running a race with a heavy backpack on.

How Your Body Fights Back

Your immune system is like a superhero team that shows up to save the day. It fights off the germs so you can get better. Sometimes it takes a few days for your body to beat the germs, but once it does, you’ll feel like a champion again, ready to play, run, and have fun!

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Examples

  1. A child sneezes near you, and suddenly you're coughing all day because the influenza virus has invaded your body.
  2. The flu makes people feel weak and achy because it's fighting against their immune system.
  3. Flu viruses change each year, which is why vaccines are updated yearly.

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Categories: Science · influenza· virus· immunity· health