Governments, businesses and individuals are seeking such blood tests, to help them learn more about who may have had the disease, who may have some immunity and to potentially craft strategies to end lockdowns that have battered global economies.
At present, the testing strategy covers all symptomatic cases as well as hospitalised cases of severe acute respiratory illness. Besides, the government is also using rapid antibody tests for surveillance in hotspots and even in green zones that have not reported any cases.
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