A person who has experienced any one of the following exposures during the 2 days before and the 14 days after the onset of symptoms of a probable or confirmed case: 

1. Face-to-face contact with a probable or confirmed case within 1 meter and for at least 15 minutes
2. Direct physical contact with a probable or confirmed case
3. Direct care for a patient with probable or confirmed COVID-19 disease without the use of recommended personal protective equipment

OR

1. Other situations as indicated by local risk assessments

Suspected case of SARS-CoV-2 infection (three options, A through C):

A. A person who meets the clinical AND epidemiological criteria:

Clinical criteria:

1. Acute onset of fever AND cough;

OR

1. Acute onset of ANY THREE OR MORE of the following signs or symptoms: fever, cough, general weakness/fatigue,1 headache, myalgia, sore throat, coryza, dyspnea, anorexia/nausea/vomiting, diarrhea, altered mental status.

AND

Epidemiological criteria:  

1. Residing or working in a setting with high risk of transmission of the virus: for example, closed residential settings and humanitarian settings, such as camp and camp like settings for displaced persons, any time within the 14 days before symptom onset;

OR

1. Residing in or travel to an area with community transmission anytime within the 14 days before symptom onset;

OR

1. Working in health setting, including within health facilities and within households, anytime within the 14 days before symptom onset.

B. A patient with severe acute respiratory illness (SARI: acute respiratory infection with history of fever or measured fever of ≥ 38 C°; and cough; with onset within the last 10 days; and who requires hospitalization).

C. An asymptomatic person not meeting epidemiologic criteria with a positive SARS-CoV-2 antigen-detecting rapid diagnostic test (Ag-RDT).

Confirmed case of SARS-CoV-2 infection (three options, A through C):

1. A person with a positive Nucleic Acid Amplification Test (NAAT)
2. A person with a positive SARS-CoV-2 Ag-RDT AND meeting either the probable case definition or suspected criteria A OR B
3. An asymptomatic person with a positive SARS-CoV-2 Ag-RDT AND who is a contact of a probable or confirmed case.