Disadvantages of rapid antigen and viral tests include: • Lower Sensitivity – Antigen and viral tests have lower sensitivity than PCR, which means they may fail to detect disease in people with low levels of infection. • Possible False Positive or False Negative Results – False results may occur if the person has a low level of infection or if the testing procure is perform poorly. • Lack of information about the patient’s immune status – these types of tests do not provide information about the patient’s immune status. WHAT ARE THE LATEST TECHNOLOGIES US IN RAPID ANTIGEN AND VIRAL TESTS.
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The latest technologies us in rapid antigen and viral tests include immunochromatographic tests (ICT, immunofluorescence tests (IF and molecular Argentina Phone Number List tests such as polymerase chain reaction (PCR. ICT tests are quick and easy to use, with results available in minutes. They consist in carrying out an immunological reaction between the antigen and the antibody, which causes a color change on the direct or indirect test material. IF tests are more time consuming than ICT but provide more precise information about the presence of an antigen or virus. They consist in carrying out an immunological reaction between the antigen and the antibody, which causes fluorescence during microscopic observation.
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The PCR test is the most time consuming of the three technologies, but it provides the most precise information about the presence of an antigen or virus. It consists in the amplification of DNA or RNA sequences using polymerase enzymes BU Leads and appropriate primers. WHAT ARE THE DIFFERENCES BETWEEN ANTIGEN AND VIRAL RAPID TESTS? Rapid antigen and viral tests are currently being us to detect the presence of the SARS-CoV- virus, which is responsible for the COVID- disease. Both types of tests are effective in detecting the presence of the virus, but there are some differences between them.