It is widely acknowledged that testing can provide vital information and should be the key to policies for opening up. But what do we know about testing, and why is it important? Here are my takeaways about the confusing medley of information ontesting:It is important to differentiate between two broad types of tests -- tests to check for the presence of the virus and active infection (antigen test) and antibody tests. Here is where antibody tests can help -- these tests answer the question of who has been exposed to the virus and has acquired antibodies. The antibody test is useful for understanding the nature of the disease at a population level.

Source: Dhaka Tribune May 13, 2020 17:15 UTC