Clinically Compatible Case
A clinical syndrome generally compatible with the disease, as described in the clinical description.
A case that is classified as confirmed for reporting purposes.
Epidemiologically Linked Case
A case in which, A) the patient has had contact with one or more persons who either have/had the disease or have been exposed to a point source of infection (i.e., a single source of infection, such as an event leading to a foodborne-disease outbreak, to which all confirmed case-patients were exposed) and B) transmission of the agent by the usual modes of transmission is plausible. A case may be considered epidemiologically linked to a laboratory-confirmed case it at least one case in the chain of transmission is laboratory confirmed.
A case that is confirmed by one or more of the laboratory methods listed in the case definition under Laboratory Criteria for Diagnosis. Although other laboratory methods can be used in clinical diagnosis, only those listed are accepted as laboratory confirmation for national reporting purposes.
A case that is classified as probable for reporting purposes.
Supportive or Presumptive Laboratory Results
Specified laboratory results that are consistent with the diagnosis, yet do not meet criteria for laboratory confirmation.
A case that is classified as suspected for reporting purposes.
A group of signs and symptoms that occur together and characterize a particular abnormality.