Persons using assistive technology might not be able to fully access information in this file. For assistance, please send e-mail to: firstname.lastname@example.org. Type 508 Accommodation in the subject line of e-mail.
CDC and Council of State and Territorial Epidemiologists
(CSTE) pertussis case definition*
Clinical Case Definition
a cough illness lasting at least 2 weeks with one of the following: paroxysms of coughing, inspiratory "whoop," or
posttussive vomiting, and without other apparent cause (as reported by a health-care professional)
Laboratory Criteria for Diagnosis
isolation of Bordetella pertussis from a clinical specimen, or
positive polymerase chain reaction (PCR) assay for
an acute cough illness of any duration associated with
B. pertussis isolation, or
a case that meets the clinical case definition and is confirmed by PCR, or
a case that meets the clinical definition and is epidemiologically linked directly to a case confirmed by either culture or PCR
a case that meets the clinical case definition, is not laboratory confirmed by culture or PCR, and is not
epidemiologically linked directly to a laboratory-confirmed case.
Use of trade names and commercial sources is for identification only and does not imply endorsement by the U.S. Department of
Health and Human Services.References to non-CDC sites on the Internet are
provided as a service to MMWR readers and do not constitute or imply
endorsement of these organizations or their programs by CDC or the U.S.
Department of Health and Human Services. CDC is not responsible for the content
of pages found at these sites. URL addresses listed in MMWR were current as of
the date of publication.
All MMWR HTML versions of articles are electronic conversions from ASCII text
into HTML. This conversion may have resulted in character translation or format errors in the HTML version.
Users should not rely on this HTML document, but are referred to the electronic PDF version and/or
the original MMWR paper copy for the official text, figures, and tables.
An original paper copy of this issue can be obtained from the Superintendent of Documents,
U.S. Government Printing Office (GPO), Washington, DC 20402-9371; telephone: (202) 512-1800.
Contact GPO for current prices.
**Questions or messages regarding errors in formatting should be addressed to