8% Of Those Who Had Mild COVID-19 Developed No Detectable Antibodies

In a study of 175 people in China who recovered from COVID-19 (SARS-CoV-2 coronavirus) after experiencing mild symptoms, 8% developed no detectable antibodies in their plasma. Currently, researchers believe that neutralizing antibodies (NAbs) developed while fighting the virus indicate recovery and future protection from the disease.

SARS-CoV-2-specific NAbs were detected from day 10 to day 15 after the onset of the disease and remained thereafter. For most of the participants, the titers of NAb correlated with spike-binding antibodies in specific targeted regions. The titers of NAbs were variable in different individuals. Key findings . . .