tony grew and entertainment journalist caroline frost. a drug to treat cystic fibrosis, that became available on the nhs in england last year, is transforming lives. medics at the royal papworth hospital in cambridge say �*kaftrio', is having an impact that some have described as "mind—blowing". richard westcott went to meet laura — who had been told she might not live beyond thirty, but who has now celebrated that birthday in good health, and has even started a family. panting. this is life with cystic fibrosis. a few months ago, laura filmed herself exhausted by a simple walk. the transformation is incredible. after taking a newly—available drug, kaftrio, she's got her life back — and created a new one. say hello, louie. laura, when this drug first came out, you know,