Simplify the following text for a Grade 10 native English-speaking person.
Original: Survivor : Pearl Islands winner Sandra Diaz-Twine also confirmed that she turned down an offer to join the show , saying that she was still recovering from parasites that she received at Pearl Islands .
Simplified: Survivor : Pearl Islands winner Sandra Diaz-Twine also says that she said no , saying that she was still recovering from parasites that she got at Pearl Islands .