Viruses are like tiny fire starters. Imagine a virus is like a match, it lights one person on fire, and then that person becomes a whole bonfire of infection. If the virus is very contagious, each infected person can light up many more people, like a wildfire spreading through a forest.
Examples
- A sneeze from one kid can make an entire classroom sick.
- A virus can jump between people in seconds, just like a game of tag.
- A single infected person on a plane can spread the virus to dozens.
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See also
- What Makes a Virus ‘Contagious’ or ‘Rare’?
- What Causes a ‘Pandemic’ to Spread So Quickly?
- How Does a Virus Know When to Spread?
- How Does a Virus Spread So Quickly?
- What Causes the ‘Flu’ and How Is It Different From a Common Cold?
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