This may be more of a health question than a travel question, but it definitely applies to travelers to many parts of the world. If someone gets malaria (either through not taking preventative pills or because they don't stop a particular infection), what are the consequences? In countries with decent medical care, is it simply a matter of taking anti-malarial pills as treatment until the infection is gone? Or is malaria, as some have told me, a lifelong infection that will chronically recur once it has infected someone?
Or, to put it another way, in travel destinations where malaria risk is borderline, is it very important to take preventative measures to avoid serious consequences, or is the disease not serious and easily treatable as long as you have access to good health care?