Are there laboratory tests for the diagnosis of pertussis?
Yes, there are two lab tests that can be used. One is a bacterial culture and the other is polymerase chain reaction (PCR) assay. The specimen used for both is a nasopharyngeal swab or aspirate. More information is available in the Manual for the Surveillance of Vaccine-Preventable Diseases, (www.cdc.gov/nip/publications/surv-manual/chpt08_pertussis.pdf).