Some swimmers from Australia got a little sick with Covid-19, but most are feeling better now and can play in the Olympics.
The Olympics in Paris are different from the ones in Tokyo because there aren't as many rules about masks and testing.
Even though Covid-19 is not as bad as it used to be, it's still around and we need to be careful.
Lots of people have gotten shots to protect themselves from Covid-19, so it's not as scary as before.