How Does a Plague Spread Through a Society?

A plague is like a sneaky game where sick people pass their sickness to others, and soon everyone is playing along.

Imagine your favorite toy goes missing, you look for it, and when you find it, you take it home. Now imagine that toy has a germ on it, and every time someone touches it, they get a little bit of the germ too. That’s how a plague starts: one person gets sick, and then others catch the sickness from them, maybe by touching something the sick person touched or being close to them when they coughed or sneezed.

When someone is sick, they might go to school or work. Then, all their friends and classmates get the germ too. It’s like when you drop your ice cream on the floor, everyone wants to try it now, even though it’s messy. Soon, more people are sick, and they pass the germ around just like the first person did.

At first, only a few people are sick, but as they share their germs with others, more people get sick too. It's like a snowball rolling down a hill, it starts small, but before long, it becomes huge and covers everything in its path.

Before you know it, the whole town is playing the germ game, and everyone is sick!