Covid-19 antibody testing detects whether a patient has been exposed to the new coronavirus. Photo: AFP Covid-19 antibody testing detects whether a patient has been exposed to the new coronavirus. Photo: AFP
Covid-19 antibody testing detects whether a patient has been exposed to the new coronavirus. Photo: AFP

Researchers report more people with Covid-19 antibodies – and it’s creating a stir among scientists

  • Studies in Europe and the US find many people may have been exposed to the new coronavirus without knowing
  • There remain questions about whether they’re protected against further infection and whether it helps herd immunity

Topic |   Coronavirus pandemic
Covid-19 antibody testing detects whether a patient has been exposed to the new coronavirus. Photo: AFP Covid-19 antibody testing detects whether a patient has been exposed to the new coronavirus. Photo: AFP
Covid-19 antibody testing detects whether a patient has been exposed to the new coronavirus. Photo: AFP
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