Unveiling the Sneaky Intruders: How Viruses Invade and Multiply Inside Us

Feb 8, 2024 | Science and Technology

How do viruses work?

What are viruses?

Viruses are tiny, invisible germs that can make us sick. They are so small that you can’t even see them with your eyes! They are like little troublemakers that sneak into our bodies and cause all sorts of problems.

How do viruses get in our bodies?

Viruses can enter our bodies in different ways. Sometimes, they sneak in through our noses or mouths when we breathe in. Other times, they can enter through cuts or scrapes on our skin. These sneaky viruses can even hide on objects we touch, like doorknobs or toys, and then jump onto us when we touch our faces without washing our hands.

What do viruses do inside our bodies?

Once a virus gets inside our bodies, it starts to cause trouble. It goes on an adventure, like a little explorer, looking for a place to grow and multiply. The virus finds a cozy spot in our cells and starts taking over, kind of like a houseguest who overstays their welcome.

How do viruses multiply?

When a virus finds a cell to call home, it releases its own genetic material, like a secret code. This secret code tricks the cell into making copies of the virus. It’s like the virus is shouting, “Make more of me!”

The cell doesn’t realize it’s being tricked and keeps making copies of the virus. These copies then go on to invade other cells, turning them into virus factories. It’s like a never-ending chain reaction!

How do viruses make us sick?

As the virus multiplies, it starts to make us feel sick. It can cause symptoms like sneezing, coughing, fever, and feeling tired. The virus is like a mischief-maker that makes our bodies feel yucky!

Sometimes our amazing immune system fights back and defeats the virus, making us feel better. Other times, we need the help of doctors and medicines to get rid of the virus. But mostly, our bodies are superheroes that can defeat the virus on their own!

How do we protect ourselves from viruses?

There are super simple things we can do to protect ourselves from viruses:

  • Wash your hands often with soap and water for at least 20 seconds.
  • Avoid touching your face, especially your eyes, nose, and mouth.
  • Cover your mouth and nose with a tissue or your elbow when you sneeze or cough.
  • If you feel sick, stay home and rest.
  • Remember to eat healthy food, get enough sleep, and exercise to keep your immune system strong.
  • By following these superhero rules, we can keep those sneaky viruses at bay!


    Viruses are tiny, invisible troublemakers that can make us sick. They sneak into our bodies and take over our cells, making copies of themselves. This makes us feel sick, but our brave immune system fights back. We can protect ourselves by washing our hands, avoiding touching our faces, and keeping our bodies healthy and strong. Remember, we have the power to fight those pesky viruses!

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