TOPICS: Legionella Pneumophila, bacteria, gram negative, facultative intracellular, water source, air conditioning, water tanks, smokers, chronic lung disease, oxidase positive, silver stain, charcoal yeast extract medium, iron and cysteine, watery diarrhea, pneumonia, CNS, confusion, headache, fever, pontiac fever, hyponatremia, antigens in urine, fluoroquinolones, azithromycin
