Novel Coronavirus (COVID-19)

A. Person under Investigation

A person with fever and/or onset of cough or difficulty breathing AND any of the following within 14 days prior to onset of illness: • Travel to an impacted area* or • Close contact with a confirmed or probable case of COVID-19, or • Close contact with a person with acute respiratory illness who has been to an impacted area.

B. Probable Case

A person with fever (over 38 degrees Celsius) and/or onset of (or exacerbation of chronic) cough AND any of the following within 14 days prior to onset of illness: • Travel to an impacted area* or • Close contact with a confirmed or probable case of COVID-19 or • Close contact with a person with acute respiratory illness who has been to an impacted area* AND • In whom laboratory diagnosis of COVID-19 is not available, inconclusive, or negative (if specimen quality or timing is suspect)

C. Presumptive Confirmed Case

A person in whom the laboratory testing for COVID-19 was positive from the Public Health Ontario Laboratory but not yet confirmed

D. Confirmed Case

A person with laboratory confirmation of COVID-19 infection performed at a reference laboratory (e.g. The National Microbiology Laboratory or Public Health Ontario Laboratory) and consists of positive real-time PCR on at least two specific genomic targets, or a single positive target AND additional detection with nucleic acid sequencing. Positive laboratory tests at a non-reference laboratory require additional testing at a reference laboratory for confirmation.