FIU hosting walkathon for cystic fibrosis
Experts, survivors and their supporters join to raise funds to fight cystic fibrosis. BY RODOLFO ROMANrroman@MiamiHerald.comFlorida International University alumnus Ernesto Calderin, 25, will be visiting his alma mater again — but not to hit the books. Instead, he will be educating a crowd of supporters about a disease he has battled his entire life: cystic…