Know about Covid-19 Test
The COVID-19 test analyzes samples to assess the current or past presence of SARS-CoV-2. The two main branches recognize either the presence of the virus or antibodies that are produced in response to infection. Virus presence tests are used to diagnose individual cases and enable health authorities to detect and contain outbreaks. Instead, antibody tests show whether someone has ever had the disease. They are less useful in diagnosing current infections because antibodies may not develop until weeks after infection. It is used to assess the prevalence of diseases, which helps estimate the infectious mortality rate.
Different jurisdictions have implemented different testing protocols, including who to test, how often to test, analytical protocols, sampling, and the use of test results. This variance is likely to have a significant impact on the statistics reported, including case and test numbers, death rates, and case demographics. Since the transmission of SARS-CoV-2 occurs 2 days after exposure (and before symptoms appear), frequent monitoring and rapid availability of results is imperative.
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