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Diagnosing the Disease COVID-19’s manifestation in patients is now well-known, such as the loss of smell and the fact it is infectious before symptoms appear. HKUMed scholars have contributed to that understanding and are working to identify potential targets for treatment and vaccine. » To detect COVID-19 virus in patients, we developed rapid nucleic acid amplification tests that were quickly circulated and, by mid-March, had been used by public healthcare laboratories in more than 70 countries and territories. » We showed that deep throat saliva samples, especially if taken early in the morning, were highly sensitive and effective for diagnosis. 12