Efficacy of POC Antibody Assays After COVID-19 Infection and Potential Utility for "Immunity Passports"

Akram Shalaby, MD; Hansini Laharwani, MD; John T. Bates, PhD; Patrick B. Kyle, PhD


Lab Med. 2022;53(3):262-265. 

In This Article


One limitation of our study is the small sample size, in that we only examined 30 specimens from patients who were RT-PCR–positive and 30 specimens from patients who were negative. In addition, all our specimens were collected within 21 days of the RT-PCR testing. Larger studies evaluating specimens collected at longer time intervals are needed to assess the utility of serological assays in confirming past SARS-CoV-2 infection and immunity.