there s an experimental new treatment that could be the key to saving kali s life, if that miracle happens. our medical correspondent elizabeth cohen is outfront. i know you spoke with kali s mother, so, what did she tell you? reporter: she told me they really are taking it wound day at a time. they are feeling some hope, because she does seem to be getting better. in the beginning, she said, they were just devastated when they first got the diagnosis. my husband asked, what was the prognosis for this amoeba and he explained to us that there was not a cure for the amoeb amoeba. we just both couldn t believe that we were going to lose kali, but we decided that we weren t going to accept that and we were going to start praying and hopefully our daughter would beat the odds. that s all we had to hang onto. reporter: now, kali is still in critical condition, but she is showing some signs of