CNN 's William Hudson , Jacque Wilson , Jen Christiansen , John Bonifield , Caleb Hellerman , Jennifer Bixler and Leslie Holland contributed to this story . Kali Hardig , last month , is finally leaving CDC . Kali Hardig is walking with assistance during therapy sessions , hospital says . Kali Hardig causes brain infection , nearly always fatal , according to the Arkansas Children 's Hospital . Parasite generally found in people who swim in warm fresh water .
Kali Hardig , last month , is finally leaving CDC . Kali Hardig is walking with assistance during therapy sessions , hospital says . Kali Hardig causes brain infection , nearly always fatal , according to the Arkansas Children 's Hospital . Parasite generally found in people who swim in warm fresh water .