Coronavirus antibody tests should not be used to tell people whether they have had the infection already, scientists have warned.
In a joint letter published in the British Medical Journal, a dozen leading scientists have cautioned that the blood-based kits — once dubbed ‘game-changers’ — by top politicians may actually be more trouble than they’re worth.
Antibody tests examine blood to look for signs of past infection, as opposed to swab tests that tell if someone is currently infected.
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