Had bacterial meningitis- confirmed with lp and treated. why is it that some recover and some die?

Luck/good docs: Some forms of bacterial meningitis are more aggressive & time sensitive than others which leaves a narrow window for recognition and treatment to be successful. Some patients have better individual response to germ invasion which slows the germ until meds kick in. If you have an aggressive germ and a poor immune system you are more likely to die, even when treatment is started quickly.