hereThe main difference between rapid-antigen tests and nasal/throat swabs and finger-prick blood tests is the antigen tests do not require laboratory processing to produce results.This means they are able to detect coronavirus infection within minutes, compared to the hours or days necessary for the genetic tests, known as PCR tests, to turnaround results.However they are generally considered less accurate than laboratory-based tests.They are far cheaper than other tests, with each test costing five US dollars (£3.90) each.The rapid antigen tests will be vital in improving the testing capacity of lower and middle-income countries who lack enough laboratory resources or trained health workers to properly carry out PCR tests.They will also.
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