Table 2.

Coronavirus disease 2019 (COVID-19) case as defined by the World Health Organization.

Suspect case

A.A person with acute respiratory illness fever and at least one sign/symptom of respiratory disease [e.g., cough, shortness of breath] AND a history of travel to or residence in a location reporting community transmission of COVID-19 during the 14 days prior to symptom onset; OR

B.A person with any acute respiratory illness AND who has been in contact with a person with confirmed or probable COVID-19 (see definition of contact) during the 14 days prior to symptom onset; OR

C.A person with severe acute respiratory illness (fever and at least one sign/symptom of respiratory disease [e.g., cough, shortness of breath] AND requiring hospitalization) AND in the absence of an alternative diagnosis that fully explains the clinical presentation.

Probable case

A.A person with a suspect case for whom testing for the COVID-19 virus is inconclusive. (Inconclusive as reported by the laboratory) OR

B.A person with a suspect case for whom testing could not be performed for any reason.

Confirmed case

A person with laboratory-confirmed COVID-19 infection irrespective of clinical signs and symptoms.

Person Under Investigation (PUI)a

Any person who is currently under investigation for having COVID-19 (a suspect case) or who was under investigation but whose test results are negative or inconclusive (a probable case).

^aPUI is a category specified by the Centers for Disease Control.