Diagnostic tools and organism

Guinea pig virulence test; Elek Immunodiffusion Test; APE Rapid Coryne System; PCR Amplification

isolation of organism from blood and spinal fluid; specialized culture

Gram-stain/morphology of colonies; Disc testing to demonstrate antibiotic-resistance; enzyme-based/biochemical-based minisystems

DFA of nasopharyngeal swab; ELISA of respiratory secretions or serum

direct immunofluorescence of biospecimen; Wayson bipolar polychromatic stain of biospecimen; Typing of bacteriophage useful in tracing epidemiology

Immunoserology; EIA of stool specimen; CLO Test; Urea Breath-Test; tissue biopsy;