There are three primary laboratory methods to diagnose an<unk>  infection, polymerase chain reaction (PCR), peripheral blood smear, and an immunofluorescence assay (IFA). Polymerase chain reaction and peripheral blood smear exams are most effective when conducted early on in the diagnoses. The gold standard serologic test for<unk>  is the immunofluorescence assay. The test is most effective when conducted once early on in the infection and a second time, later in the infection. Infection rates will show in increase within an IFA as the illness progresses.
Ehrlichiosis laboratory findings
Typhus laboratory findings
Pertussis laboratory findings
Typhoid fever laboratory findings
Urticaria laboratory findings
Tuberculosis laboratory findings
Babesiosis laboratory findings
Legionellosis laboratory findings