"Antibiotics are made in a lab, so they can't read or define genetic material, which means they will attack almost anything in your body its sees as a threat.
Uh… what? =O.o=
Antibiotics work since they are substances that interfere with the lifecycle of bacteria.
There are grossly, two types of them - bacteriostatic ones, which prevent reproduction of a particular set of bacteria (example would be the erythromycin , if I recall right) or cytotoxic (? not sure if right term) ones, which outright fuck up the bacteria (if I recall right, an example would be fluoroquinolones which inhibit the function of an enzyme , gyrase, which unwinds the bacterium's DNA when it is being read)
If the infection is susceptible, high enough doses of this stuff could save at least a chunk of the patients in question. It probably won't be nowhere near 100% but some should survive if pumped with enough chemistry and isolated from further infectious agents.