Diagnostic tests available for<unk>  include viral culture, serology, rapid antigen testing, polymerase chain reaction (PCR), immunofluorescence assays, and rapid molecular assays. Sensitivity and specificity of any test for<unk>  might vary by the laboratory that performs the test, the type of test used, and the type of specimen tested.  Among respiratory specimens for viral isolation or rapid detection, nasopharyngeal specimens are typically more effective than throat swab specimens.  As with any diagnostic test, results should be evaluated in the context of other clinical and epidemiologic information available to health-care providers.
Influenza laboratory findings
Avian influenza laboratory findings
Coronavirus laboratory findings
Pertussis laboratory findings
Typhus laboratory findings
Hantavirus infection laboratory findings
COVID-19 laboratory findings
Diphtheria laboratory findings