My Daughter Age 26 Was In A Car Accident And

My daughter age 26 was in a car accident and her left arm suffered a compound fracture due to a wooden fence going thru her arm. Lost 3pints of blood. They preformed surgery fixed bones with brackets &pins. 4weeks later infection then another surgery to clean revealing wood splinters. She received antibiotic pills bacterium. 4weeks later infection hole appeared puss goofball size Burt. Now two more surgery a and cultures . Infectious disease has diagnosed two bacteria ./ klebsiella pneumonia and enterobacter cloacae...they say it's non-resistant to an antibiotic that is administers every 24hours. I googled it and the Internet says 50%mortality is this true?