article_snippet: Valentina was diagnosed with cystic fibrosis when Valentina was 6.
article_snippet: Valentina older brother died from cystic fibrosis.
article_snippet: cystic fibrosis is a life-threatening disease that damages the lungs and digestive system.
article_snippet: Valentina's family has already witnessed how cystic fibrosis can be terminal.
highlights_snippet: 14-year-old Valentina Maureira suffers from cystic fibrosis .
  