Testing for diseases is important because in most cases the quicker you can diagnose someone better their chance of recovery. This is the particular case for cancer where early detection and accurate diagnosis can ensure people are given the most effective treatment as quickly as possible. For coronavirus, testing serves to identify people who are infected or who have been infected with the virus in past.
There are following types of test for coronavirus
A PCR swab test to find out whether you currently have coronavirus
An antibody blood test to find out whether you have previously had coronavirus and may have some degree of immunity
The New Saliva test
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