At present, the outbreak of the novel coronavirus is severe and widespread around the world.Many
various types of diagnostic methods for screening severe acute respiratory syndrome coronavirus 2 (SARSCoV-
2) infection in patients including molecular detection techniques, immunological tests and imaging
diagnostic technique have been developed and adjusted globally. Nevertheless, real-time reverse transcriptasepolymerase
chain reaction (RT-PCR) is used as the "gold standard" for detecting SARS-CoV-2 from patient
samples, generally. This method takes long period to screening test and sample collection methods often results
in the person being tested feeling pain or uncomfortable. Nowadays, one of the most interesting SARS-CoV-2
screening method that has been recently studied is the detection by scent dogs. It could be a novel reasonable
technique for a first line screening method that detecting the unusual or specific odour from infected patients.
Thus, this review article is aimed to gather the evidences from previous studies and experiments which
revealed that scent dogs can use as the screening method of infected patients from SARS-CoV-2