COVID-19 Diagnostic Tests and Their Types As we all know that the whole world is suffering from COVID-19. More than 8 million people are its patients and about half million died from this dangerous disease. First step in the treatment of any disease is its diagnosis and same is the case with COVID-19. A variety of tests are being performed around the world to diagnose corona virus. The methods of these tests differ from each other, as well as the sensitivity of their results. PCR test or Swab test This test is used to diagnose people who are currently ill with Covid 19. This is what we have been hearing about. Principle of Working This test is performed with a sample of mucus that is usually taken from a person's nose or throat. This test can also work on saliva. It searches for the genetic material of the corona virus. The test uses a technology called PCR (Polymerise Chain Reaction), which greatly enhances the presence of viral genetic material. This content can be detected when
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