Neutralizing antibody responses following natural SARS-CoV-2 infection: Dynamics and correlation with commercial serologic tests.

•Commercial serologic tests showed similar performances for detecting neutralizing antibodies.•Some participants lost neutralizing antibodies after 6-month follow up.•The amount of decrease in antibody titers is not significantly different between symptomatic and asymptomatic participants.•Most of the commercial serological evaluated assays showed a significant decrease of antibodies titers after 6-month follow up.