COVID-19 is a virus that is part of a group of viruses called coronavirus.
COVID-19 is often remembered as coronavirus, when it's actually COVID-19.
COVID-19 stands for COronaVIrus Disease 2019.
One theory is that it all started at a seafood market in Wuhan, China and eventually spread to more and more places, eventually leading to most countries in the world.
How to protect yourself
Symptoms - Appear 2-14 days after catching COVID-19
How to protect others if you're sick
The following types of people are more vulnerable to COVID-19:
What to do when bored
Note: young people are less vulnerable and have a lower chance of dying, including kids.