Time Course of Neutralizing Antibody in Health Care Workers With Mild or Asymptomatic COVID-19 Infection

We describe the time course of neutralizing antibody (NtAb) titer in a cohort of health care workers with mild or asymptomatic severe acute respiratory syndrome coronavirus (SARS-CoV-2) infection. NtAb levels decreased over time; however, serum neutralizing activity remained detectable after a median of 7 months from SARS-CoV-2 diagnosis in the majority of cases.

Automated summary

The study found that neutralizing antibody levels decrease over time in healthcare workers with mild or asymptomatic SARS-CoV-2 infection, but serum neutralizing activity remains detectable in the majority of cases after a median of 7 months from diagnosis.