Chat about Novel Coronavirus - 2019-nCoV - COVID-19

If only 20% of the people tested are coming back positive, what symptoms have the other 80% got that gives rise to the test?
Edit to add...Ne'er mind found it. There are a lot of ill people around.

3.1 Patients who meet the following criteria (inpatient definition)
requiring admission to hospital (a hospital practitioner has decided that admission to hospital is required with an expectation that the patient will need to stay at least one night)
and
have either clinical or radiological evidence of pneumonia
or
acute respiratory distress syndrome
or
influenza like illness (fever ≥37.8°C and at least one of the following respiratory symptoms, which must be of acute onset: persistent cough (with or without sputum), hoarseness, nasal discharge or congestion, shortness of breath, sore throat, wheezing, sneezing
Note: Clinicians should consider testing inpatients with new respiratory symptoms or fever without another cause or worsening of a pre-existing respiratory condition.