Laboratory abnormalities in Legionnaires' disease include leukocytosis with relative lymphopenia, hyponatremia, hypophosphatemia, and elevated levels of AST/ALT, CPK, ESR, CRP, LDH, and ferritin.  Urine antigen testing in the first-line diagnostic method.  Culture of the lower respiratory secretion is the gold standard for the detection of Legionella and diagnosis of Legionnaires' disease.
Legionellosis laboratory findings
Brucellosis laboratory findings
Shigellosis laboratory findings
Urticaria laboratory findings
Typhoid fever laboratory findings
Babesiosis laboratory findings
Typhus laboratory findings
Listeriosis laboratory tests