Clinical criteria |
Cough illness lasting ≥2 weeks, without a more likely diagnosis and at least one of the following: - Paroxysms of coughing, or
- Inspiratory whoop, or
- Posttussive vomiting, or
- Apnea (with or without cyanosis)
|
Laboratory criteria |
Isolation of Bordetella pertussis from a clinical specimen |
Positive PCR for B. pertussis |
Epidemiologic linkage |
Contact with a laboratory-confirmed case of pertussis* |
Case classification |
Confirmed |
Acute cough illness of any duration with isolation of B. pertussis from a clinical specimen, or |
Acute cough illness of any duration with PCR positive for pertussis |
Probable |
Clinical criteria (as above) and absence of a more likely diagnosis, or |
Acute cough illness of any duration with at least one of the following: - Paroxysms of coughing
- Inspiratory whoop
- Posttussive vomiting
- Apnea (with or without cyanosis)
and: - Contact with a laboratory-confirmed case
|