The biggest limitation of RT-PCR test is that it requires an elaborate laboratory with specific configurations in order to perform the test. Not only does that entail an expensive setup cost, it also means that the collected samples must be sent to the laboratory before results can be derived. Further, the testing time itself usually takes hours. 

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This time lapse impedes quarantine decisions significantly and can have dire consequences in cases of false negative. 

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Not only does this machine obviate the high setup cost, it requires less manpower to administer, and

 

The machine obviates the above issues, as it can perform the test on the spot and provide result within 30 minutes. Additionally, it has a low set up cost and minimal requirement in manpower to operate the machine.