The coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), continues to spread globally. To date, over 142.1 million cases have been confirmed worldwide.
Vaccination rollouts have commenced in most countries in an attempt to arrest the spread of SARS-CoV-2. Antibody testing can help determine the magnitude of the pandemic and, at the same time, can be used for vaccine efficacy evaluation.