Maryland breakout highlights dangers of antibiotic-resistant bacteria
                                
                                
                                    (Newser) -
                                    A "superbug"—deadly, antibiotic-resistant bacterium—rampaged through a Maryland hospital last year, killing six patients. The revelation was not made public until today, notes the  Washington Post . It all began in June 2011, when a patient harboring the superbug known as Klebsiella pneumoniae checked into the National Institutes...