Can we have any reports and records that recovers COVID 19 patients those developed immunity again virus might be affected in second time.?
As per current record No study has evaluated whether the presence of antibodies to SARS-CoV-2 confers immunity to subsequent infection by this virus in humans.
Can COVID-19 Case is same as human immune system acquired immunity after first infection of any novel antigen and made memory cells for protection for future infection.
if it it so, have we tested or have we any record?