In the light of COVID-19 pandemic, Hong Kong has become a city filled with anxiety and fear towards COVID-19 infection, and some of the people do not even acknowledge that they may have already contracted with COVID-19. Taking PT-PCR test would be one of the feasible measures to identify the probabilities of infection. There are 3 possible sampling methods for undergoing PT-PCR test, including (1) Deep Throat Saliva Sampling, (2) Nasal Swab Sampling and (3) Combined Throat and Nasal Swab Sampling. All the 3 methods will be proceeded by extracting specimen of the specific secretions, and data could be retrieved after performing PT-PCR tests. Considering the distinct accuracy in the test results, MediFast Hong Kong is launching theCOVID-19 Deep Throat Saliva RT-PCR Test for the general public, which most people could undergo the tests themselves. COVID-19 Deep Throat Saliva Test will be performed by the testing institution recognized by the HKSAR Government.